CVE-2026-78402CWE-121CWE-787

Stack Buffer Overflow in Sentinel Keys Server

High · published October 30, 2026

CVSS v3.1
7.8
EPSS
—
In the wild
Unconfirmed
What it is

Stack-based buffer overflow and out-of-bounds

write vulnerability in Thales Sentinel Keys Server on Windows allows Overflow

Buffers.

Sentinel Keys Server does not check the length of the first field in

the input message. A local attacker may craft an input and send it to Sentinel

Keys Server. It may lead to code execution as NT AUTHORITY\SYSTEM enabling

local privilege escalation.

This issue affects Sentinel Keys Server: versions

lower than 1.3.8.0.

The record
Technical detail
CVSS v3.1
7.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
7.3 · CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
Not scored
Weaknesses
CWE-121 · Stack-based Buffer Overflow; CWE-787 · Out-of-bounds Write
Published
2026-10-30T19:11Z
Timeline
  • 30 OCT 19:11Z
    Stack Buffer Overflow in Sentinel Keys Server
    cvelistv5
  • 30 OCT 19:11Z
    Stack Buffer Overflow in Sentinel Keys Server
    cvelistv5