CVE-2026-43831

A stack-based buffer overflow vulnerability in the log message functionality could allow an unauthenticated attacker to achieve code execution.

CVSS 4.0

9.2CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS 3.1

7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS

0.6% chance of exploitation in the next 30 days; higher than 50% of CVEs (scores of 2026-10-25)

CWE

CWE-121

Published

2026-07-31

Modified

2026-10-20

Record from

the NVD, synced 2026-10-21

References

• https://www.advantech.com/en/security-advisory
• https://www.csa.gov.sg/alerts-and-advisories/alerts/al-2026-149
• https://github.com/CVEProject/cvelistV5/blob/8846a06bd73fefb0d7b7e205f1e21f97d0b9cbe2/cves/2026/43xxx/CVE-2026-43831.json

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