CRITICAL CWE-121
CVE-2026-91843
Stack overflow in login process to the Security Management and Log Servers
Check Point·Quantum Security Management
9.8/ 10
CVSS 3.1
Critical severity
0.52%
EPSS exploit odds
Chance of exploitation in the next 30 days
Higher than 45% of all CVEs
Not listed
CISA KEV catalog
No confirmed in-the-wild exploitation on CISA's list.
Timeline
- Published
- Sep 16, 2026
- Updated
- Sep 17, 2026
- First covered
- Sep 18, 2026
- Latest story
- 2 months ago
Summary
A stack overflow during the unauthenticated login process may allow an attacker to run arbitrary code remotely with root privileges.
CWE-121Stack-based Buffer Overflow.
Attack profile
Attack vectorNetwork
ComplexityLow
PrivilegesNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HAffected products
- Check Point Quantum Security ManagementR82.10 with Jumbo Hotfix Take 44 or belowR82 with Jumbo Hotfix Take 126 or belowR81.20 with Jumbo Hotfix Take 166 or belowR81.10 (EOS) with Jumbo Hotfix Take 190 or below