CVE-2026-91843CWE-121

CVE-2026-91843

Critical · published September 16, 2026

CVSS v3.1
9.8
EPSS
1%
Percentile
43.3
In the wild
Unconfirmed
What it is

A stack overflow during the unauthenticated login process may allow an attacker to run arbitrary code remotely with root privileges.

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00519 · 43.3th percentile
Weakness
CWE-121 · Stack-based Buffer Overflow
Published
2026-09-16T18:17Z
References (1)
https://support.checkpoint.com/results/sk/sk1000155 · [email protected]
EPSS history
Timeline
  • 18 SEP 04:02Z
    EPSS moved — → 1%
    epss
  • 16 SEP 13:03Z
    Stack overflow in login process to the Security Management and Log Servers
    cvelistv5