Buffer overflow in Gnu Libmicrohttpd
CVE-2025-62689
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…
Vulnerability class: Buffer Overflow
EPSS: 0.004 (30.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Gnu Libmicrohttpd
- Gnu Project Libbmicrohttpd — versions v1.0.2 and earlier (The vulnerability remains in the source code up until commit ff13abc on the master branch of the libmicrohttpd Git repository, after the v1.0.2 tag.)
Weakness classification (CWE)
References
- vultures@jpcert.or.jp (Product)
- vultures@jpcert.or.jp (Patch)
- vultures@jpcert.or.jp (Third Party Advisory)
Frequently asked questions
- What is CVE-2025-62689?
- CVE-2025-62689 is a high-severity vulnerability in Gnu Libmicrohttpd, classified under Heap-based Buffer Overflow. CVSS score: 7.5/10. Published 2025-11-10.
- How severe is CVE-2025-62689?
- High severity. CVSS v3 base score is 7.5 out of 10.