CVE-2026-43855CWE-122

CVE-2026-43855

published October 20, 2026

CVSS
7.5
EPSS
1%
Percentile
47.3
In the wild
Unconfirmed
What it is

A heap-based buffer overflow vulnerability could allow a remote authenticated attacker to achieve arbitrary code execution.

The record
Technical detail
CVSS
7.5 · NONE
CVSS v4.0
7.5 · CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00586 · 47.3th percentile
Weakness
CWE-122 · Heap-based Buffer Overflow
Published
2026-10-20T14:17Z
References (2)
https://www.advantech.com/en/security-advisory · 5f57b9bf-260d-4433-bf07-b6a79e9bb7d4https://www.csa.gov.sg/alerts-and-advisories/alerts/al-2026-149 · 5f57b9bf-260d-4433-bf07-b6a79e9bb7d4
EPSS history
Timeline
  • 21 OCT 03:29Z
    EPSS moved — → 1%
    epss
  • 20 OCT 09:14Z
    A heap-based buffer overflow vulnerability could allow a remote authenticated attacker to achieve arbitrary code execution
    cvelistv5
  • 20 OCT 09:14Z
    A heap-based buffer overflow vulnerability could allow a remote authenticated attacker to achieve arbitrary code execution
    cvelistv5