CVE-2018-25259CWE-306

Terminal Services Manager 3.1 Buffer Overflow SEH

High · published April 22, 2026

CVSS v4.0
8.6
EPSS
0%
Percentile
8.1
In the wild
Unconfirmed
What it is

Terminal Services Manager 3.1 contains a stack-based buffer overflow vulnerability in the computer names field that allows local attackers to execute arbitrary code by triggering structured exception handling. Attackers can craft a malicious input file with shellcode and jump instructions that overwrite the SEH handler pointer to execute calc.exe or other payloads when imported through the add computers wizard.

The record
Technical detail
CVSS v4.0
8.6 · HIGH
Vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00189 · 8.1th percentile
Weakness
CWE-306 · Missing Authentication for Critical Function
Published
2026-04-22T14:56Z
EPSS history
Timeline
  • 22 APR 14:56Z
    Terminal Services Manager 3.1 Buffer Overflow SEH
    cvelistv5