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

2026-07-06

AI Q&A

2025-11-10

EPSS Evaluated

2026-07-05

NVD

CVE-2025-59777

EUVD

EUVD-2025-41747

Affected Vendors & Products

Vendor	Product	Version / Range
gnu	libmicrohttpd	to 2025-09-16 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-476	The product dereferences a pointer that it expects to be valid but is NULL.

Attack-Flow Graph

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, which causes the software to dereference a NULL pointer, leading to a denial-of-service (DoS) condition. This means the affected software can crash or become unavailable due to this flaw.

Impact Analysis

The impact of this vulnerability is a denial-of-service (DoS) condition. An attacker can send a specially crafted packet to the affected software, causing it to crash or become unresponsive, which disrupts service availability.

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