CVE-2024-40766

Published Aug 23, 2024

Last updated a month ago

Overview

AI description

Automated description summarized from trusted sources.

CVE-2024-40766 is an improper access control vulnerability found in SonicWall SonicOS. The vulnerability lies in the SonicOS management access, potentially leading to unauthorized resource access. In specific conditions, this can cause the firewall to crash. The vulnerability affects SonicWall Firewall Gen 5 and Gen 6 devices, as well as Gen 7 devices running SonicOS 7.0.1-5035 and older versions. It is recommended to restrict firewall management access to trusted sources and ensure that firewall WAN management is not accessible from the public internet. Similarly, limiting SSLVPN access to trusted sources or disabling it from the internet is also advised.

Description
An improper access control vulnerability has been identified in the SonicWall SonicOS management access, potentially leading to unauthorized resource access and in specific conditions, causing the firewall to crash. This issue affects SonicWall Firewall Gen 5 and Gen 6 devices, as well as Gen 7 devices running SonicOS 7.0.1-5035 and older versions.
Source
PSIRT@sonicwall.com
NVD status
Analyzed
Products
sonicos

Risk scores

CVSS 3.1

Type
Primary
Base score
9.8
Impact score
5.9
Exploitability score
3.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity
CRITICAL

Known exploits

Data from CISA

Vulnerability name
SonicWall SonicOS Improper Access Control Vulnerability
Exploit added on
Sep 9, 2024
Exploit action due
Sep 30, 2024
Required action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Weaknesses

PSIRT@sonicwall.com
CWE-284
nvd@nist.gov
NVD-CWE-noinfo

Social media

Hype score
Not currently trending
  1. 🚨 Marquis Ransomware Breach Hits 74 US Banks, Credit Unions Marquis Software Solutions—a vendor serving 74 US banks and credit unions—got hit by ransomware, exposing financial institution data on 400,000+ customers. What's notable: Akira ransomware exploited CVE-2024-40

    @the_c_protocol

    4 Dec 2025

    57 Impressions

    0 Retweets

    0 Likes

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    0 Replies

    0 Quotes

  2. Ransomware vulns with highest exploit likelihood ⬆️ (past 30d): - CVE-2024-40766 (SonicOS SSL-VPN..) +64.88% - CVE-2022-27510 (NetScaler ADC..) +21.33% - CVE-2022-27510 (Gateway..) +21.33% - CVE-2021-27877 (Veritas Veritas..) +15.37% - CVE-2021-27876 (Veritas Veritas..) +14.

    @DefusedCyber

    1 Dec 2025

    7197 Impressions

    2 Retweets

    23 Likes

    9 Bookmarks

    2 Replies

    2 Quotes

  3. Alerta sobre ransomware Akira: Operação expande ataques para Nutanix AHV VM encriptando discos via CVE-2024-40766 e explorando vulnerabilidades em firewalls SonicWall, exigindo backups offline e autenticação multifator rápida para proteção eficaz. https://t.co/RJOgQlpsUU

    @caveiratech

    14 Nov 2025

    54 Impressions

    0 Retweets

    1 Like

    0 Bookmarks

    0 Replies

    0 Quotes

  4. The ransomware strain Akira has expanded its reach to virtual machines running on Nutanix’s AHV platform. According to a recent advisory, the attack campaign began in June 2025 and exploited a critical vulnerability in SonicWall’s SonicOS (CVE-2024-40766) to gain a foothold.

    @rtehrani

    14 Nov 2025

    82 Impressions

    1 Retweet

    1 Like

    0 Bookmarks

    0 Replies

    0 Quotes

  5. The Akira ransomware group has earned over $244M by exploiting VMware ESXi servers and multiple vulnerabilities like CVE-2024-40766 and CVE-2023-28252, using credential theft and brute-force tactics. #AkiraGroup #RansomwareAttack #VMware https://t.co/XdFZRcysSD

    @TweetThreatNews

    14 Nov 2025

    28 Impressions

    0 Retweets

    0 Likes

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    0 Replies

    0 Quotes

  6. CISA reports Akira ransomware targets Nutanix AHV VMs by encrypting .qcow2 disk files via SonicWall CVE-2024-40766 exploit. Attack uses stolen credentials and minimal platform interaction. #AkiraRansomware #NutanixAHV #USA https://t.co/RRgNhWrF3T

    @TweetThreatNews

    14 Nov 2025

    16 Impressions

    0 Retweets

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  7. CISA identifies Akira ransomware as an imminent threat to U.S. critical infrastructure, leveraging exploits like SonicWall CVE-2024-40766 and Veeam vulnerabilities through VPN and SSH attacks. #AkiraGroup #CriticalInfrastructure #USA https://t.co/BLK3HbCfp4

    @TweetThreatNews

    13 Nov 2025

    55 Impressions

    0 Retweets

    0 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

  8. Is your SonicWall SSL VPN truly secure? 🔒 The Akira ransomware group is actively exploiting SonicWall SSL VPNs by combining a patched vulnerability (CVE-2024-40766) with a critical security gap: unaddressed legacy accounts. This attack vector is particularly dangerous becaus

    @HunterStrategy

    14 Oct 2025

    100 Impressions

    0 Retweets

    0 Likes

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    0 Replies

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  9. 🚨 SonicWall SSL VPN 3,894件が露出 — MFAバイパス・OVERSTEP侵入を確認​ 複数のハッキンググループ(Akira、UNC6148)が既知の脆弱性CVE-2024-40766を悪用。​ MFA環境でも侵入事例が発生しており、管理者は即時対応が

    @CriminalIP_JP

    14 Oct 2025

    132 Impressions

    0 Retweets

    1 Like

    0 Bookmarks

    0 Replies

    0 Quotes

  10. اگر از محصول SonicWall SSL VPN استفاده می کنید ، بررسی کنید که آیا آسیب پذیری با کد شناسایی CVE-2024-40766 پچ شده است یا خیر . به تازگی باج افزار Akira از این آسیب پذیری برای

    @AmirHossein_sec

    12 Oct 2025

    103 Impressions

    0 Retweets

    0 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

  11. 🚨CVE-2024-40766: Critical Improper Access Control Vulnerability Affecting SonicWall Devices CVSS: 9.3 FOFA: https://t.co/LxTe42aUQN Results: 473,950 FOFA Query: app="SONICWALL-SSL-VPN" Advisory: https://t.co/4Gpw41Btwg https://t.co/2vHVqxgPlV

    @DarkWebInformer

    10 Oct 2025

    6286 Impressions

    7 Retweets

    29 Likes

    7 Bookmarks

    0 Replies

    0 Quotes

  12. SonicWall ファイアウォールを標的とする攻撃:Akira ランサムウェアによるログイン試行を分析 https://t.co/Ctt5l1tuRD SonicWall SSL VPN の脆弱性 CVE-2024-40766 を起点に、認証情報が悪用され、Akira

    @iototsecnews

    8 Oct 2025

    188 Impressions

    1 Retweet

    1 Like

    0 Bookmarks

    0 Replies

    0 Quotes

  13. Akira Reloaded https://t.co/n9P8eEJttx Akira ransomware attacks have surged since July 2025, exploiting a vulnerability in SonicWall VPNs (CVE-2024-40766) to gain rapid access to organizational networks. These attacks are characterized by their speed, with some intrusions comp

    @f1tym1

    7 Oct 2025

    12 Impressions

    0 Retweets

    0 Likes

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    0 Replies

    0 Quotes

  14. Actively exploited CVE : CVE-2024-40766

    @transilienceai

    5 Oct 2025

    43 Impressions

    0 Retweets

    0 Likes

    0 Bookmarks

    1 Reply

    0 Quotes

  15. Akira ransomware group exploits CVE-2024-40766 and stolen SonicWall VPN credentials to breach and encrypt networks in under four hours, bypassing MFA and using advanced lateral movement techniques. #SonicWallVPN #AkiraRansomware #USA https://t.co/YnakNBRApy

    @TweetThreatNews

    30 Sept 2025

    6 Impressions

    0 Retweets

    0 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

  16. Cyber threat update hot off the press 🚨 – critical malware, sophisticated frauds, major vulnerabilities, and espionage cases unveiled in the last hour: 🛡️ SonicWall firewalls (Gen 5-7) under active attack exploiting CVE-2024-40766 SSL VPN flaw to deploy Akira ransomwar

    @np_cyber_news

    30 Sept 2025

    0 Impressions

    0 Retweets

    0 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

  17. [SonicWall CVE-2024-40766] Arctic Wolf révèle que la récente campagne ransomware Akira a compromis des comptes utilisateurs via le contournement du MFA. https://t.co/r6U3lXsZdo

    @cert_ist

    29 Sept 2025

    67 Impressions

    0 Retweets

    0 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

  18. Since mid-2025, attackers are exploiting a severe vulnerability in SonicWall SSL VPNs (CVE-2024-40766). It's a wake-up call: patching is non-negotiable! #GRC #VulnerabilityManagement

    @Cyb3r_5wift

    29 Sept 2025

    0 Impressions

    0 Retweets

    0 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

  19. Akira ransomware exploits CVE-2024-40766 to breach SonicWall SSL VPN devices, bypassing MFA using stolen OTP seeds or other means. Attacks include rapid scanning, credential theft, and lateral movement. #AkiraRansomware #VPNBreach #USA https://t.co/IYXmxaL7WX

    @TweetThreatNews

    28 Sept 2025

    124 Impressions

    0 Retweets

    0 Likes

    1 Bookmark

    0 Replies

    0 Quotes

  20. Akiraランサムウェア集団が多要素認証で保護されたSonicWallのVPNアカウントを侵害している。Arctic Wolf社報告。SonicWall公式はCVE-2024-40766関連だとしている。金銭目的のUNC6148集団が窃取済みのOTPシードを用いてOVERST

    @__kokumoto

    28 Sept 2025

    1292 Impressions

    3 Retweets

    6 Likes

    2 Bookmarks

    0 Replies

    0 Quotes

  21. Zero-day vulnerabilities lurk in popular software, unseen until exploited. Attacks like Stuxnet, Log4Shell, and CVE-2024-40766 reveal their devastating impact. Defending against them demands a strong defense-in-depth strategy to detect, contain, and recover. https://t.co/65KxYPjK

    @The4n6Analyst

    24 Sept 2025

    35 Impressions

    0 Retweets

    0 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

  22. 🚨 Akira ransomware explota fallas en SonicWall SSL VPN y errores de configuración para acceder a redes corporativas. 🔓 CVE-2024-40766 + LDAP mal configurado = acceso no autorizado. 🔗https://t.co/VIhrxxRAwA #Ransomware #Akira #SonicWall #CyberSecurity #VPN #ThreatIntel #

    @trustlock_sec

    19 Sept 2025

    17 Impressions

    0 Retweets

    2 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

  23. The #Akira ransomware group is back in action, exploiting a critical vulnerability (CVE-2024-40766) in SonicWall SSL VPN devices that was previously patched in August 2023. Affected #SonicWall versions include Gen 5, Gen 6, and Gen 7. https://t.co/djFwL9lzmp

    @devcentral

    19 Sept 2025

    48 Impressions

    0 Retweets

    1 Like

    0 Bookmarks

    0 Replies

    0 Quotes

  24. 🚨 BREAKING SONICWALL : Violation MySonicWall expose configurations de 5% des pare-feu mondiaux ! Attaques brute-force API + CVE-2024-40766 = tempête parfaite cybercriminelle. https://t.co/tuprLhtm4C #SonicWall #MySonicWall #DataBreach #CyberSecurity #FirewallSecurity http

    @ctrlaltnod

    18 Sept 2025

    2 Impressions

    0 Retweets

    1 Like

    0 Bookmarks

    0 Replies

    0 Quotes

  25. Researchers and authorities are warning that Akira ransomware attacks involving exploits of a year-old vulnerability affecting SonicWall firewalls are on the rise. A burst of about 40 attacks linked to CVE-2024-40766 hit SonicWall firewalls between mid-July and early August. ht

    @CyberScoopNews

    16 Sept 2025

    445 Impressions

    0 Retweets

    1 Like

    1 Bookmark

    0 Replies

    0 Quotes

  26. Researchers and authorities are warning that Akira ransomware attacks involving exploits of a year-old vulnerability affecting SonicWall firewalls are on the rise. A burst of about 40 attacks linked to CVE-2024-40766 hit SonicWall firewalls between mid-July and early August. ht

    @CyberScoopNews

    15 Sept 2025

    353 Impressions

    0 Retweets

    0 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

  27. This is your Monday reminder to immediately apply patches if you are using SonicWall firewalls. The Akira ransomware group is actively attacking SonicWall firewalls by exploiting a known, year-old vulnerability (CVE-2024-40766: https://t.co/FqaWEywjKU

    @CybelAngel

    15 Sept 2025

    21 Impressions

    0 Retweets

    0 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

  28. Researchers and authorities are warning that Akira ransomware attacks involving exploits of a year-old vulnerability affecting SonicWall firewalls are on the rise. A burst of about 40 attacks linked to CVE-2024-40766 hit SonicWall firewalls between mid-July and early August. ht

    @CyberScoopNews

    14 Sept 2025

    491 Impressions

    0 Retweets

    1 Like

    0 Bookmarks

    0 Replies

    0 Quotes

  29. Top 5 Trending CVEs: 1 - CVE-2024-40766 2 - CVE-2025-54135 3 - CVE-2018-20587 4 - CVE-2022-46689 5 - CVE-2025-32756 #cve #cvetrends #cveshield #cybersecurity https://t.co/4Fua3CAN6W

    @CVEShield

    14 Sept 2025

    8 Impressions

    0 Retweets

    0 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

  30. Critical Threat Alert: The SonicWall SSL VPN vulnerability (CVE-2024-40766) is being actively exploited by Akira Ransomware. Our guide provides the full threat intel and defense strategies. Read the full report: https://t.co/ks145AMJKc https://t.co/btW5RtlZco

    @Iambivash007

    13 Sept 2025

    4 Impressions

    0 Retweets

    0 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

  31. HybridPetya ransomware exploits CVE-2024-7344 to bypass UEFI Secure Boot. Akira targets SonicWall SSLVPN with CVE-2024-40766. Panama Ministry breached amid widespread patches for DELMIA, Cisco IOS XR, Samsung, Adobe. #Panama #UEFESecurity #SonicWall https://t.co/LEB3rIOUoE

    @TweetThreatNews

    13 Sept 2025

    445 Impressions

    0 Retweets

    2 Likes

    1 Bookmark

    0 Replies

    0 Quotes

  32. Akira ransomware affiliates continue exploiting CVE-2024-40766 in SonicWall firewalls, targeting organizations globally through misconfigurations and outdated software amid firewall migrations. #SonicWall #Ransomware #USA https://t.co/1mj0j79foI

    @TweetThreatNews

    12 Sept 2025

    174 Impressions

    0 Retweets

    1 Like

    0 Bookmarks

    0 Replies

    0 Quotes

  33. 📝 𝐒𝐨𝐧𝐢𝐜𝐖𝐚𝐥𝐥 𝐟𝐢𝐫𝐞𝐰𝐚𝐥𝐥𝐬 𝐭𝐚𝐫𝐠𝐞𝐭𝐞𝐝 𝐛𝐲 𝐟𝐫𝐞𝐬𝐡 𝐀𝐤𝐢𝐫𝐚 𝐫𝐚𝐧𝐬𝐨𝐦𝐰𝐚𝐫𝐞 𝐬𝐮𝐫𝐠𝐞 • Akira ransomware attacks exploiting SonicWall fir

    @PurpleOps_io

    12 Sept 2025

    103 Impressions

    0 Retweets

    0 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

  34. Akira ransomware exploits three SonicWall flaws—including CVE-2024-40766 and SSLVPN misconfigs—to breach networks fast. Patch, enable MFA, and restrict access now. 🔐⚠️ #AkiraRansomware #Vulnerability https://t.co/pQZMaIqLtf

    @manuelbissey

    12 Sept 2025

    101 Impressions

    1 Retweet

    1 Like

    0 Bookmarks

    0 Replies

    0 Quotes

  35. 一世を風靡したFirewallのSonicwallのVPN脆弱性がRansomwareの餌食になる CVE-2024-40766脆弱性問題が未解決で起こる乗っ取り。かって強固で知られたファイヤーウォールの名門ですが、最近は元気ないのでしょうか? http

    @innovative_ec

    12 Sept 2025

    10 Impressions

    0 Retweets

    1 Like

    0 Bookmarks

    0 Replies

    0 Quotes

  36. Researchers warn that the Akira ransomware group exploits a year-old SonicWall flaw (CVE-2024-40766) using multiple vectors for access, urging users to secure accounts and apply patches to prevent unauthorized access. #CyberSecurity #Ransomware https://t.co/Hu71kxBimU

    @Cyber_O51NT

    12 Sept 2025

    556 Impressions

    0 Retweets

    5 Likes

    0 Bookmarks

    2 Replies

    0 Quotes

  37. CVE-2024-40766 Detail https://t.co/DOmw14fxGn

    @chasster123

    11 Sept 2025

    57 Impressions

    0 Retweets

    0 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

  38. SonicWall SSL VPN Flaw and Misconfigurations Actively Exploited by Akira Ransomware Hackers. Attacks exploit a year-old security flaw (CVE-2024-40766, CVSS score: 9.3) where local user passwords were carried over during the migration and not reset. https://t.co/xEOW0mJnDx https:/

    @riskigy

    11 Sept 2025

    74 Impressions

    0 Retweets

    1 Like

    0 Bookmarks

    0 Replies

    0 Quotes

  39. Since late July 2025, Akira hackers have targeted SonicWall firewalls, exploiting a year-old vulnerability (CVE-2024-40766) alongside misconfigurations. Don't let complacency be your downfall! 🔒 #ThreatHunting

    @Cyb3r_5wift

    11 Sept 2025

    6 Impressions

    0 Retweets

    0 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

  40. Akira ransomware is exploiting a critical, year-old SonicWall SSLVPN bug (CVE-2024-40766) for unauthorized access. Patch now! 🚨 https://t.co/nFPi2p3dHD #AkiraRansomware #SonicWall #CVE202440766

    @0xT3chn0m4nc3r

    11 Sept 2025

    23 Impressions

    0 Retweets

    0 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

  41. Akira ransomware exploiting critical SonicWall SSLVPN bug again The Akira ransomware gang is actively exploiting CVE-2024-40766, a year-old critical-severity access co… https://t.co/yUvGA9oWMq https://t.co/cPgS1fruUf

    @DConsultinguk

    11 Sept 2025

    0 Impressions

    0 Retweets

    0 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

  42. Urgent Warning! The ACSC is warning that a critical SonicWall vulnerability (CVE-2024-40766) is being actively exploited. Our exclusive report has the full analysis. #SonicWall #Cybersecurity #CVE https://t.co/5cukKLOw1q https://t.co/wBHdzn2vxs

    @Iambivash007

    11 Sept 2025

    1 Impression

    0 Retweets

    0 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

  43. Vulnerability Alert: Akira ransomware is exploiting SonicWall SSL VPNs via CVE-2024-40766 (CVSS 9.3), LDAP misconfigs, and exposed portals. Initial access = RCE, data theft, ransomware. Mitigate: • Rotate local creds • Enforce MFA • Restrict access https://t.co/1VYrFOfO6n

    @CloneSystemsInc

    11 Sept 2025

    67 Impressions

    0 Retweets

    0 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

  44. Срочное предупреждение! В Австралии выявлена уязвимость CVE-2024-40766, затрагивающая устройства SonicWall SSL VPN. Хакеры используют этот недостаток для несанкцион

    @cybereye_ru

    11 Sept 2025

    42 Impressions

    0 Retweets

    0 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

  45. 🔒 Did you know CVE-2024-40766 has a staggering CVSS score of 9.8? 🚨 Akira ransomware is targeting SonicWall devices, exploiting potential zero-day vulnerabilities! #Cybersecurity #Ransomware https://t.co/XsUW0OxMvd

    @Cyb3r_5wift

    11 Sept 2025

    1 Impression

    0 Retweets

    0 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

  46. Australia’s Cyber Security Centre alerts on active exploitation of CVE-2024-40766 in SonicWall SSL VPN devices, enabling Akira ransomware to bypass controls and crash firewalls. Firmware updates and credential resets critical. #SonicWallVPN #RansomwareAt… https://t.co/G5juQiB

    @TweetThreatNews

    11 Sept 2025

    144 Impressions

    0 Retweets

    0 Likes

    1 Bookmark

    0 Replies

    0 Quotes

  47. 🚨 Akira ransomware is back — hammering SonicWall VPNs through a year-old flaw (CVE-2024-40766, CVSS 9.3). One misstep in SonicWall’s LDAP “Default User Group” can hand attackers VPN + admin access the moment they steal a password. Akira has already hit 967 victims an

    @TheHackersNews

    11 Sept 2025

    77187 Impressions

    56 Retweets

    150 Likes

    26 Bookmarks

    0 Replies

    2 Quotes

  48. Ongoing active exploitation of SonicWall SSL VPNs in Australia (CVE-2024-40766) https://t.co/XqExgv8Fd6

    @Dinosn

    10 Sept 2025

    1722 Impressions

    2 Retweets

    4 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

  49. Undisclosed SonicWall Zero Day Leading to Akira Ransomware https://t.co/5C3rieuDIu SonicWall has linked recent SSLVPN security incidents to CVE-2024-40766, affecting Gen 7 and newer firewalls, with less than 40 identified incidents primarily during Gen 6 to Gen 7 migrations wh

    @f1tym1

    15 Aug 2025

    10 Impressions

    0 Retweets

    0 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

  50. https://t.co/PTt8waIIpy SonicWall confirms recent SSL-VPN incidents on Gen 7+ firewalls aren’t caused by a zero-day, but tied to the known CVE-2024-40766. Most cases involved Gen 6 → Gen 7 password reuse without resets. #SonicWall #VulnerabilityManagement

    @AnomalousBytes

    11 Aug 2025

    34 Impressions

    0 Retweets

    0 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

Configurations