CVE-2025-62408

low-risk
Published 2025-12-08

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.

Do I need to act?

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0.03% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.9/10 Medium
NETWORK / HIGH complexity

Affected Products (1)

C-Ares

Affected Vendors

C-Ares

References (2)

Patch https://github.com/c-ares/c-ares/commit/714bf5675c541bd1e668a8db8e67ce012651e618
Patch https://github.com/c-ares/c-ares/security/advisories/GHSA-jq53-42q6-pqr5
23
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal