BaseFortify

Publication date: 2025-12-08

Last updated on: 2025-12-12

Assigner: MITRE

Description

A memory disclosure vulnerability exists in libcoap's OSCORE configuration parser in libcoap before release-4.3.5-patches. An out-of-bounds read may occur when parsing certain configuration values, allowing an attacker to infer or read memory beyond string boundaries in the .rodata section. This could potentially lead to information disclosure or denial of service.

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Meta Information

Published

2025-12-08

Last Modified

2025-12-12

Generated

2026-07-06

AI Q&A

2025-12-08

EPSS Evaluated

2026-07-05

NVD

CVE-2025-59391

EUVD

EUVD-2025-201786

Affected Vendors & Products

Vendor	Product	Version / Range
libcoap	libcoap	*

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-125	The product reads data past the end, or before the beginning, of the intended buffer.

Attack-Flow Graph

Executive Summary

This vulnerability is a memory disclosure issue in libcoap's OSCORE configuration parser before version 4.3.5-patches. It involves an out-of-bounds read when parsing certain configuration values, which allows an attacker to read memory beyond the intended string boundaries in the read-only data section (.rodata).

Impact Analysis

The vulnerability can lead to information disclosure by allowing attackers to infer or read sensitive memory contents beyond intended boundaries. It may also cause denial of service by triggering unexpected behavior in the parser.

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