CVE-2025-62408

Name: CVE-2025-62408
Creator: NVD / NIST
Published: 2025-12-08T22:15:52.62+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.9/10EPSS 0.39%

Last modified Jun 17, 2026

CVE-2025-62408 is a medium-severity vulnerability rated 5.9/10 on the CVSS scale. 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. EPSS estimates a 0.39% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

5.9/10

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

0.39%

30.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-416

Affected Software

Vendor	Product	Versions
C-Ares	C-Ares	>= 1.32.3, < 1.34.6

References

https://github.com/c-ares/c-ares/commit/714bf5675c541bd1e668a8db8e67ce012651e618Patch
https://github.com/c-ares/c-ares/security/advisories/GHSA-jq53-42q6-pqr5Patch, Vendor Advisory

Timeline

Published: Dec 8, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-62408?

How severe is CVE-2025-62408?

CVE-2025-62408 has a CVSS score of 5.9/10 (MEDIUM severity). The EPSS model estimates a 0.39% probability of exploitation in the next 30 days.

How do I fix CVE-2025-62408?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-62408?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST