CVE-2025-62689
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-11-10

Last updated on: 2025-11-14

Assigner: JPCERT/CC

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.
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Meta Information
Published
2025-11-10
Last Modified
2025-11-14
Generated
2026-06-16
AI Q&A
2025-11-10
EPSS Evaluated
2026-06-15
NVD
CVE-2025-62689
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
gnu libmicrohttpd to 2025-09-16 (exc)
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-122 A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
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Executive Summary

This vulnerability is a NULL pointer dereference in GNU libmicrohttpd version 1.0.2 and earlier. It occurs when a specially crafted packet is sent by an attacker, causing the software to dereference a NULL pointer, which leads to a denial-of-service (DoS) condition by crashing or stopping the service.

Impact Analysis

The impact of this vulnerability is a denial-of-service (DoS) condition. An attacker can exploit it remotely by sending a specially crafted packet, causing the affected service to crash or become unavailable, which can disrupt normal operations and availability of systems using GNU libmicrohttpd.

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