CVE-2025-59777: Null Pointer Dereference
Published Nov 10, 2025
·Updated
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 Software
3 affected componentsFixes available
GNU libmicrohttpd<1.0.2
GNU libmicrohttpd<2025-09-16
Microsoft azl3 libmicrohttpd 0.9.77-3
Remediation
Event History
Nov 10, 2025
CVE Published
via MITRE·04:10 AM
Data Sourced
via MITRE·04:10 AM
DescriptionSeverity
Data Sourced
via NVD·05:15 AM
RemedyDescriptionSeverityWeaknessAffected Software
Nov 13, 2025
Data Sourced
via Microsoft·01:03 AM
DescriptionSeverityWeakness
Data Sourced
via Microsoft·01:03 AM
Affected Software
Updated
via Microsoft·01:03 AM
DescriptionSeverity
Frequently Asked Questions
1
What is the severity of CVE-2025-59777?
CVE-2025-59777 is classified as a denial-of-service vulnerability due to a NULL pointer dereference.
2
How do I fix CVE-2025-59777?
To mitigate CVE-2025-59777, update your GNU libmicrohttpd to version 1.0.3 or later.
3
What versions of GNU libmicrohttpd are affected by CVE-2025-59777?
CVE-2025-59777 affects GNU libmicrohttpd version 1.0.2 and earlier.
4
What type of attack does CVE-2025-59777 enable?
CVE-2025-59777 enables attackers to cause a denial-of-service (DoS) condition through specially crafted packets.
5
Who is the vendor of the software affected by CVE-2025-59777?
The vendor of the software affected by CVE-2025-59777 is GNU.