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.
History

Tue, 09 Dec 2025 10:15:00 +0000

Type Values Removed Values Added
First Time appeared Libcoap
Libcoap libcoap
Vendors & Products Libcoap
Libcoap libcoap

Mon, 08 Dec 2025 18:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-125
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 08 Dec 2025 17:15:00 +0000

Type Values Removed Values Added
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.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2025-12-08T00:00:00.000Z

Updated: 2025-12-08T17:51:29.230Z

Reserved: 2025-09-15T00:00:00.000Z

Link: CVE-2025-59391

cve-icon Vulnrichment

Updated: 2025-12-08T17:50:20.805Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-12-08T17:16:20.080

Modified: 2025-12-08T18:26:19.900

Link: CVE-2025-59391

cve-icon Redhat

No data.