AI description
CVE-2026-91843 is a critical stack overflow vulnerability affecting Check Point's Security Management and Log Servers. This flaw occurs during the unauthenticated login process, enabling a remote attacker to execute arbitrary code with root privileges on the affected system. The vulnerability is specifically a stack-based buffer overflow (CWE-121) that can be triggered by sending a crafted login request containing an oversized username. This pre-authentication vulnerability means that an attacker does not require valid credentials or user interaction to exploit it, making any exposed instance directly at risk. Check Point has released a LivePatch (sk1000155) to address this issue, and customers with automatic updates enabled are already protected.
- Description
- A stack overflow during the unauthenticated login process may allow an attacker to run arbitrary code remotely with root privileges.
- Source
- cve@checkpoint.com
- NVD status
- Awaiting Analysis
CVSS 3.1
- Type
- Secondary
- 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
- cve@checkpoint.com
- CWE-121
- Hype score
- Not currently trending
👉 Check Point CVE-2026-91843 güncellemesi: CISA açığın şu ana kadar istismar edilmediğini bildirdi, kritik risk LivePatch (sk1000155) ile kapatılabiliyor.
@trsiberyazilim
21 Sept 2026
17 Impressions
0 Retweets
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💢 Check Point yönetim sunucularında CVSS 9,8 puanlı kritik açık: CVE-2026-91843, kimlik doğrulaması olmadan root yetkisiyle kod çalıştırılmasına izin veriyor. Detaylar 👇 https://t.co/cxDqfcwG7t #SiberGüvenlik #CheckPoint #CVE #Zafiyet #ZeroDay
@trsiberyazilim
21 Sept 2026
46 Impressions
0 Retweets
1 Like
0 Bookmarks
0 Replies
0 Quotes
🚨 Check Point Security Management RCE (CVE-2026-91843) Critical Vulnerability Alert! Check Point Security Management Server / Log Server is affected by CVE-2026-91843. 🔍 Identify Targets via ZoomEye: Search Dork: app="Check Point Firewall" Exposure: 277.2k instances
@zoomeyebot
19 Sept 2026
212 Impressions
0 Retweets
2 Likes
2 Bookmarks
0 Replies
0 Quotes
🚨 CHECK POINT CVE-2026-91843 UNAUTHENTICATED ROOT RCE VIA LOGIN STACK OVERFLOW Check Point disclosed CVE-2026-91843: an unauthenticated remote attacker can achieve root via a stack overflow in the login process on Security Management Server, Multi-Domain Security Management,
@DailyDarkWeb
18 Sept 2026
5892 Impressions
1 Retweet
18 Likes
3 Bookmarks
1 Reply
0 Quotes
🚨 CRITICAL: Check Point management servers face a 9.8-rated flaw. 🔥 CVE-2026-91843 could allow an unauthenticated attacker to remotely execute code with root privileges on affected Security Management and Log Servers. ⚠️ CVSS 9.8 🔓 No login required 💻 Remote cod
@xcademialtd
18 Sept 2026
21 Impressions
0 Retweets
1 Like
0 Bookmarks
0 Replies
0 Quotes
Check Point patched CVE-2026-91843, unauth root RCE in Security Mgmt Server login, all deployments vulnerable regardless of config. Restrict Trusted Clients by IP. https://t.co/75HggKmfcC
@swif_ai
18 Sept 2026
19 Impressions
0 Retweets
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Check Point Fixes Critical CVE-2026-91843 Allowing Root Code Execution: Check Point fixed CVE-2026-91843, a critical flaw that could let attackers run code as root on Security Management and Log Servers with no login needed. Check Point addressed… https://t.co/opiQ7g2LbK https:
@shah_sheikh
18 Sept 2026
46 Impressions
0 Retweets
0 Likes
0 Bookmarks
0 Replies
0 Quotes
Check Point Security ManagementにCritical 脆弱性 CVE-2026-91843 認証不要でroot権限の任意コード実行 https://t.co/D5WCwgVKRl #セキュリティ対策Lab #security #securitynews #セキュリティ
@securityLab_jp
18 Sept 2026
80 Impressions
0 Retweets
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🚨 CRITICAL: Check Point patches CVE-2026-91843 — CVSS 9.8 flaw lets hackers run ROOT code with zero login required. 5th critical management-server flaw since July. Patch now 👇 https://t.co/C0SGPMb0gy #cybersecurity #infosec #CVE https://t.co/sirNkIRKxE
@Xpert4Cyber
17 Sept 2026
2 Impressions
0 Retweets
0 Likes
0 Bookmarks
0 Replies
0 Quotes