PT-2026-80175
CVE-2026-69184
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Published
2026-08-10
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Updated
2026-10-21
Description by
CVSS 3.1
7.5
HighMetricsAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Name of the Vulnerable Software and Affected Versions
c-ares versions prior to 1.34.8-1.1
Description
A CPU-exhaustion denial of service occurs due to unbounded DNS name compression pointer chains. This issue allows an attacker to cause excessive CPU usage by providing specially crafted DNS responses that create infinite or deeply nested pointer loops during the decompression process.
Recommendations
Update to version 1.34.8-1.1.
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