CVE-2025-62689: GNU Libmicrohttpd

High severity, CVSS 8.7. EPSS: 0.4% chance of exploitation in the next 30 days.

NULL pointer dereference vulnerability exists in GNU libmicrohttpd v1.0.2 and earlier. The vulnerability was fixed in commit ff13abc on the master branch of the libmicrohttpd Git repository, after the v1.0.2 tag. A specially crafted packet sent by an attacker could cause a denial-of-service (DoS) condition.

Affected products

• GNU Libmicrohttpd: before 1.0.3 (fixed in 1.0.3)

Published 2025-11-10. Last modified 2026-10-08.