CVE-2025-9242

Published Sep 17, 2025

Last updated a month ago

CVSS critical 9.3
WatchGuard Fireware OS

Overview

AI description

Automated description summarized from trusted sources.

CVE-2025-9242 is an out-of-bounds write vulnerability found in WatchGuard Fireware OS. The vulnerability resides in the *iked* process. This flaw makes it possible for an unauthenticated, remote attacker to execute arbitrary code on affected systems. The vulnerability impacts both Mobile User VPN with IKEv2 and Branch Office VPN using IKEv2 when configured with a dynamic gateway peer.

Description
An Out-of-bounds Write vulnerability in WatchGuard Fireware OS may allow a remote unauthenticated attacker to execute arbitrary code. This vulnerability affects both the Mobile User VPN with IKEv2 and the Branch Office VPN using IKEv2 when configured with a dynamic gateway peer.This vulnerability affects Fireware OS 11.10.2 up to and including 11.12.4_Update1, 12.0 up to and including 12.11.3 and 2025.1.
Source
5d1c2695-1a31-4499-88ae-e847036fd7e3
NVD status
Awaiting Analysis

Risk scores

CVSS 4.0

Type
Secondary
Base score
9.3
Impact score
-
Exploitability score
-
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Severity
CRITICAL

Weaknesses

5d1c2695-1a31-4499-88ae-e847036fd7e3
CWE-787

Social media

Hype score
Not currently trending
  1. 🔴WatchGuard Firewall RCE: 71,000+ Devices at Risk 🔴 Over 71,000 internet-exposed WatchGuard firewalls running vulnerable IKEv2 code (CVE-2025-9242). Out-of-bounds write in packet processing allows unauthenticated RCE. Attackers gain full device control and pivot to interna

    @the_c_protocol

    21 Oct 2025

    0 Impressions

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  2. CyberNewsFlash「WatchGuard製ファイアウォール「Firebox」のikedにおける境界外書込みの脆弱性(CVE-2025-9242)について」を公開。実証コードの公開により今後本脆弱性を悪用した攻撃の増加が懸念されます。開発者が

    @jpcert

    21 Oct 2025

    2249 Impressions

    4 Retweets

    6 Likes

    2 Bookmarks

    0 Replies

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  3. 統合版 JPCERT/CC | お知らせ:CyberNewsFlash「WatchGuard製ファイアウォール「Firebox」のikedにおける境界外書込みの脆弱性(CVE-2025-9242)について」 https://t.co/TXKyJRiGay #itsec_jp

    @itsec_jp

    21 Oct 2025

    19 Impressions

    0 Retweets

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  4. Over 75,000 WatchGuard security devices vulnerable to critical RCE (CVE-2025-9242) https://t.co/zowuCFqxXf #patchmanagement

    @eyalestrin

    21 Oct 2025

    29 Impressions

    0 Retweets

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  5. 🚨 Over 75,000 WatchGuard Firebox devices vulnerable to critical RCE (CVE-2025-9242), enabling remote code execution without authentication. https://t.co/Pft42WgkHv

    @not2cleverdotme

    21 Oct 2025

    19 Impressions

    0 Retweets

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  6. 全世界で約7万5800台のWatchGuard Fireboxが、リモートから認証なしでコード実行され得る重大脆弱性にさらされている。特に米国で2万4500台、ドイツやイタリアなど欧州でも被害が広がる。 この脆弱性(CVE-2025-9242

    @yousukezan

    20 Oct 2025

    2970 Impressions

    7 Retweets

    14 Likes

    5 Bookmarks

    0 Replies

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  7. WatchGuard社のネットワークセキュリティアプライアンスFireboxが、重大(Critical)な遠隔コード実行脆弱性CVE-2025-9242に晒されている。IKEv2 VPNネゴシエーションにおける境界外書き込みで、CVSSスコアは9.3。Shadowserver F

    @__kokumoto

    20 Oct 2025

    806 Impressions

    2 Retweets

    4 Likes

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  8. A critical WatchGuard Fireware flaw (CVE-2025-9242) enables unauthenticated remote code execution via an out-of-bounds write affecting multiple Fireware OS versions and VPN setups. #WatchGuard #VPNFlaw #USA https://t.co/Mqqmkza9q4

    @TweetThreatNews

    20 Oct 2025

    68 Impressions

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  9. csirt_it: La Settimana Cibernetica del 19 ottobre 2025 🔹 aggiornamenti per molteplici prodotti 🔹 WatchGuard: PoC pubblico per la CVE-2025-9242 🔹 Operational Summary - settembre 2025 ⚠️ #EPSS: verifica le CVE di maggior interesse 🔗 … https://t.co/vV2bu3W6YD

    @Vulcanux_

    20 Oct 2025

    53 Impressions

    0 Retweets

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  10. La Settimana Cibernetica del 19 ottobre 2025 🔹 aggiornamenti per molteplici prodotti 🔹 WatchGuard: PoC pubblico per la CVE-2025-9242 🔹 Operational Summary - settembre 2025 ⚠️ #EPSS: verifica le CVE di maggior interesse 🔗 https://t.co/emkmhKESHy https://t.co/

    @csirt_it

    20 Oct 2025

    259 Impressions

    0 Retweets

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  11. #ITSecurity https://t.co/Us2tfhgj1q Cybersecurity researchers have disclosed details of a recently patched critical security flaw in WatchGuard Fireware that could allow unauthenticated attackers to execute arbitrary code. The vulnerability, tracked as CVE-2025-9242 (CVSS

    @seaarepea

    19 Oct 2025

    33 Impressions

    0 Retweets

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  12. We are now sharing daily IP data on WatchGuard Fireware OS IKEv2 Out-of-Bounds Write CVE-2025-9242 vulnerable instances, with over 71 000 seen on 2025-10-18. Data shared in our Vulnerable ISAKMP reportings - https://t.co/CNt9ZzP0uD Top affected: US with 23.2K instances https://

    @Shadowserver

    19 Oct 2025

    3182 Impressions

    14 Retweets

    23 Likes

    2 Bookmarks

    1 Reply

    1 Quote

  13. 🇺🇸 WatchGuard discloses CVE-2025-9242: Fireware OS IKEv2 vulnerability permits unauthenticated remote RCE on Firebox appliances. Advisory WGSA-2025-00015 — CVSS v4.0 9.3. #Cybersecurity #Infosec https://t.co/HsKg8L2yhg

    @OSINTMCP

    19 Oct 2025

    26 Impressions

    0 Retweets

    1 Like

    0 Bookmarks

    0 Replies

    0 Quotes

  14. 🚨 CRITICAL: Out-of-bounds write in WatchGuard Fireware OS VPN (CVE-2025-9242) lets unauthenticated attackers take control of devices. Patch now to protect your network! 🛡️ https://t.co/GmWK1vNSgs #OffSeq #Watc... https://t.co/nLa6V45PkT

    @offseq

    19 Oct 2025

    103 Impressions

    0 Retweets

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  15. Critical vulnerability CVE-2025-9242 in WatchGuard Fireware OS allows unauthenticated remote code execution. Update immediately to patched versions. Link: https://t.co/7i4rDQhT18 #Security #Vulnerability #Tech #CVE #WatchGuard #Fireware #Remote #Code #Execution #Patch #Update

    @dailytechonx

    18 Oct 2025

    93 Impressions

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  16. 🔍 𝐋𝐚𝐭𝐞𝐬𝐭 𝐂𝐕𝐄 𝐛𝐫𝐞𝐚𝐤𝐝𝐨𝐰𝐧 𝐚𝐯𝐚𝐢𝐥𝐚𝐛𝐥𝐞 𝐧𝐨𝐰! CVE-2025-9242 allows unauthenticated remote code execution on WatchGuard VPNs. Learn how attackers exploit it and how to patch now. 🔗 Get the com

    @PurpleOps_io

    18 Oct 2025

    98 Impressions

    0 Retweets

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  17. Researchers uncovered a severe bug in WatchGuard Fireware OS (CVE-2025-9242, CVSS 9.3) letting unauthenticated attackers execute code on exposed #VPN devices. Patch now or expose your perimeter. https://t.co/WBSzvTsWb4

    @top10vpn

    18 Oct 2025

    160 Impressions

    0 Retweets

    0 Likes

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  18. 🔴 🔴 Out-of-bounds write in WatchGuard Fireware OS iked process allows unauthenticated RCE via IKEv2 VPN (CVE-2025-9242, CVSS 9.3). The flaw affects Mobile User VPN and Branch Office VPN configs with dynamic gateways—even if you deleted those VPNs, the box stays vulnerable

    @the_c_protocol

    18 Oct 2025

    0 Impressions

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  19. 🚨 ثغرة حرجة في WatchGuard Firebox (CVE-2025-9242)، تمّ الكشف عنها واستغلالها فعليًا 🔹بتاريخ 17 أكتوبر 2025 أعلنت WatchGuard عن ثغرة CVE-2025-9242 في خدمة iked داخل Fireware OS (مكوّن IKEv2 VPN)

    @abdul__alamri

    18 Oct 2025

    2774 Impressions

    3 Retweets

    32 Likes

    13 Bookmarks

    1 Reply

    0 Quotes

  20. 🚨 آسیب‌پذیری بحرانی در WatchGuard Fireware با امتیاز 9.3 کشف شد! مهاجمان می‌توانند بدون احراز هویت، کد دلخواه خود را روی فایروال اجرا کنند 😱 🔹 شناسه CVE-2025-9242 #Cybers

    @vulnerbyte

    18 Oct 2025

    89 Impressions

    0 Retweets

    1 Like

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  21. 🚨In September, CVE-2025-9242, affecting WatchGuard Firebox / Fireware OS was disclosed. Yesterday, a PoC was made public. https://t.co/U6iK4gpcr9

    @Horizon3ai

    17 Oct 2025

    130 Impressions

    1 Retweet

    1 Like

    1 Bookmark

    1 Reply

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  22. WatchGuard warnt: Firebox-Firewalls dringend mit aktuellem Firmware-Update sichern Bei einigen Firewalls des Herstellers WatchGuard besteht eine kritische Sicherheitslücke (CVE-2025-9242). Betroffen sind Modelle wie T15, T70 und M4800, insbesondere bei früheren oder aktuellen

    @tec4net

    17 Oct 2025

    39 Impressions

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  23. Critical WatchGuard VPN Flaw Enables Remote Code Execution A critical vulnerability (CVE-2025-9242) in WatchGuard Firebox appliances affects IKEv2 VPN, enabling remote attackers to execute arbitrary code without authentication. With a CVSS score of 9.3, it poses a severe threat

    @Secwiserapp

    17 Oct 2025

    44 Impressions

    0 Retweets

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  24. 🚨 WatchGuard VPN bug (CVE-2025-9242) allows attackers to run code on devices, posing a critical security risk. #cybersecurity #VPNbug #WatchGuard https://t.co/PA1ZIn0kUi

    @not2cleverdotme

    17 Oct 2025

    31 Impressions

    0 Retweets

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  25. Critical WatchGuard VPN bug (CVE-2025-9242, CVSS 9.3) found! Unauthenticated attackers could execute arbitrary code on devices. Patch your Fireware OS now! 🚨 https://t.co/GZLmjeRMpM #WatchGuard #VPNSecurity #Cybersecurity #CVE20259242

    @0xT3chn0m4nc3r

    17 Oct 2025

    7 Impressions

    0 Retweets

    0 Likes

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  26. 📌 كشف الباحثون عن ثغرة أمنية خطيرة في نظام WatchGuard Fireware قد تسمح للمهاجمين غير المصرح لهم بتنفيذ أوامر عشوائية. تُصنف الثغرة، المعروفة باسم CVE-2025-9242، بـ 9.3 عل

    @Cybercachear

    17 Oct 2025

    43 Impressions

    0 Retweets

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  27. 🚨 CVE-2025-9242 — Critical WatchGuard Fireware flaw (CVSS 9.3) Unauthenticated attackers can exploit a 520-byte overflow in IKEv2 before cert checks, executing code on VPN firewalls — even spawning a Python shell over TCP. Patch now ↓ https://t.co/dkehNXYzhi

    @TheHackersNews

    17 Oct 2025

    14700 Impressions

    43 Retweets

    120 Likes

    27 Bookmarks

    0 Replies

    3 Quotes

  28. yIKEs (WatchGuard Fireware OS IKEv2 Out-of-Bounds Write CVE-2025-9242) - watchTowr Labs https://t.co/NkvmdjmjIz https://t.co/onc1bI7lnb

    @secharvesterx

    16 Oct 2025

    72 Impressions

    0 Retweets

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  29. csirt_it: ‼️ #WatchGuard: disponibile #PoC per lo sfruttamento della CVE-2025-9242, vulnerabilità “critica” che interessa i firewall #Firebox Rischio: 🔴 Tipologia: 🔸 Remote Code Execution 🔗 https://t.co/lWSYmX04kv 🔄Aggiornamenti disponibili🔄 https://t

    @Vulcanux_

    16 Oct 2025

    58 Impressions

    0 Retweets

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  30. ‼️ #WatchGuard: disponibile #PoC per lo sfruttamento della CVE-2025-9242, vulnerabilità “critica” che interessa i firewall #Firebox Rischio: 🔴 Tipologia: 🔸 Remote Code Execution 🔗 https://t.co/6nRpHz9DI4 🔄Aggiornamenti disponibili🔄 https://t.co/7Bzd8E

    @csirt_it

    16 Oct 2025

    29 Impressions

    0 Retweets

    1 Like

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  31. ⚠️Vulnerabilidad en productos WatchGuard ❗CVE-2025-9242 ➡️Más info: https://t.co/dCqO0LBwwC https://t.co/VHTAkNIR3G

    @CERTpy

    24 Sept 2025

    85 Impressions

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  32. CRITICAL: WatchGuard Firebox CVE-2025-9242 allows remote code execution via IKEv2 VPN! Severity 9.3/10 - attackers can fully control your network. Update Fireware OS immediately or face complete compromise ⚠️🔐 https://t.co/JGxJGnae58 #WatchGuard #CVE20259242 #CyberSecurity

    @cheinyeanlim

    23 Sept 2025

    66 Impressions

    0 Retweets

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  33. Critical patches issued for WatchGuard Firebox (CVE-2025-9242) and Entra ID (CVE-2025-55241) to prevent VPN and tenant takeover risks. New ransomware strains Sinobi & The Gentlemen emerge. Breaches hit NY Blood Center, SonicWall, KrasAvia. #WatchGuard #C… https://t.co/c13s4

    @TweetThreatNews

    20 Sept 2025

    144 Impressions

    0 Retweets

    2 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

  34. WatchGuard Fireboxファイアウォールの重大脆弱性に関する警告(CVE-2025-9242) https://t.co/IJVtY8KHoB #Security #セキュリティ #ニュース

    @SecureShield_

    19 Sept 2025

    6 Impressions

    0 Retweets

    0 Likes

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    0 Replies

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  35. Cyber threat roundup 🔥 from the last hour with critical updates on malware, exploits, fraud, espionage & major data breaches affecting global sectors. Here’s what you need to know: 🛡️ Critical zero-day in WatchGuard Firebox firewalls (CVE-2025-9242) allows unauthen

    @np_cyber_news

    18 Sept 2025

    1 Impression

    0 Retweets

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    0 Replies

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  36. 🚨 BREAKING: Critical flaw in WatchGuard Firebox firewalls! CVE-2025-9242 lets remote hackers execute code unauthenticated—patch NOW before your network gets owned. 😱 Don’t wait! #CyberSecurity #WatchGuard https://t.co/EqXfZHSUMx 6

    @ScriptingIntune

    18 Sept 2025

    36 Impressions

    0 Retweets

    0 Likes

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  37. CVE-2025-9242 An Out-of-bounds Write vulnerability in WatchGuard Fireware OS may allow a remote unauthenticated attacker to execute arbitrary code. This vulnerability affects both th… https://t.co/fsVNfxVtjX

    @CVEnew

    17 Sept 2025

    297 Impressions

    0 Retweets

    0 Likes

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    0 Replies

    0 Quotes

  38. 🚨 CRITICAL VULNERABILITY ALERT 🚨 WatchGuard Fireware OS is at risk. CVE-2025-9242 is a critical flaw allowing unauthenticated remote code execution. Get the defense playbook & patch now! 🔗 https://t.co/agwf96A9np #CyberSecurity #CVE #ThreatIntel https://t.co/oS7TcWu

    @Iambivash007

    17 Sept 2025

    17 Impressions

    0 Retweets

    0 Likes

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    0 Replies

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  39. 🚨🚨CVE-2025-9242 (CVSS: 9.3) : WatchGuard Firebox iked Out of Bounds Write Vulnerability The flaw resides in the iked process and could allow a remote unauthenticated attacker to execute arbitrary code on vulnerable Firebox devices. Search by vul.cve https://t.co/VZLfYcPL8W

    @zoomeye_team

    17 Sept 2025

    816 Impressions

    2 Retweets

    7 Likes

    3 Bookmarks

    0 Replies

    0 Quotes

  40. 🚨 CRITICAL: CVE-2025-9242 — WatchGuard Fireware OS hit by remote unauthenticated code execution flaw (CVSS 9.3). Immediate mitigation urged for VPN setups w/ dynamic peers! 🔒 Details: https://t.co/JrkCkB8q0v #... https://t.co/ZeBxftHlOK

    @offseq

    17 Sept 2025

    90 Impressions

    0 Retweets

    0 Likes

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    0 Replies

    0 Quotes

References

Sources include official advisories and independent security research.