CVE-2025-59777

Severity
8.7HIGH
EPSS
0.0%
top 91.21%
CISA KEV
Not in KEV
Exploit
No known exploits
Timeline
PublishedNov 10
Latest updateNov 11

Description

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.

CVSS vector

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

Affected Packages2 packages

NVDgnu/libmicrohttpd< 2025-09-16
CVEListV5gnu_project/gnu_libbmicrohttpdafter the v1.0.2 tag.), 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+1

Patches

🔴Vulnerability Details

3
CVEList
CVE-2025-59777: NULL pointer dereference vulnerability exists in GNU libmicrohttpd v12025-11-10
GHSA
GHSA-f6rc-8xc8-gmfm: NULL pointer dereference vulnerability exists in GNU libmicrohttpd v12025-11-10
OSV
CVE-2025-59777: NULL pointer dereference vulnerability exists in GNU libmicrohttpd v12025-11-10

📋Vendor Advisories

3
Microsoft
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 the2025-11-11
Red Hat
libmicrohttpd: GNU libmicrohttpd null pointer dereference2025-11-10
Debian
CVE-2025-59777: libmicrohttpd - NULL pointer dereference vulnerability exists in GNU libmicrohttpd v1.0.2 and ea...2025

💬Community

2
Bugzilla
CVE-2025-59777 libmicrohttpd: GNU libmicrohttpd null pointer dereference [fedora-43]2025-11-10
Bugzilla
CVE-2025-59777 libmicrohttpd: GNU libmicrohttpd null pointer dereference [fedora-42]2025-11-10
CVE-2025-59777 (HIGH CVSS 8.7) | NULL pointer dereference vulnerabil | cvebase.io