CVE-2025-62408

c-ares is an asynchronous resolver library. Versions 1.32.3 through 1.34.5 terminate a query after maximum attempts when using read_answer() and process_answer(), which can cause a Denial of Service. This issue is fixed in version 1.34.6.

CVSS v3 5.9 MEDIUM

5.9^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/c-ares/c-ares/commit/714bf5675c541bd1e668a8db8e67ce012651e618	Patch
https://github.com/c-ares/c-ares/security/advisories/GHSA-jq53-42q6-pqr5	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:c-ares:c-ares:*:*:*:*:*:*:*:*

History

14 Oct 2026, 22:10

Type	Values Removed	Values Added
Summary		(es) c-ares es una biblioteca resolutora asíncrona. Las versiones 1.32.3 a la 1.34.5 terminan una consulta después de un número máximo de intentos al usar read_answer() y process_answer(), lo que puede causar una Denegación de Servicio. Este problema está solucionado en la versión 1.34.6.

Information

Published : 2025-12-08 22:15

Updated : 2026-10-14 22:10

NVD link : CVE-2025-62408

Mitre link : CVE-2025-62408

CVE.ORG link : CVE-2025-62408

JSON object : View

Products Affected

c-ares

c-ares

CWE

CWE-416

Use After Free

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