Cc-ares

Products

Exploited and recent CVEs

• CVE-2026-69184 High 7.5 c-ares: CPU-exhaustion denial of service via unbounded DNS name compression pointer chains 0.5%
• CVE-2026-69186 Medium 5.3 c-ares: Memory-amplification denial of service via unvalidated DNS header record counts 0.5%
• CVE-2026-33630 High 7.5 c-ares : Use-after-free / double-free in c-ares query-completion handling, remotely triggerable via ares_getaddrinfo() over TCP 0.8%
• CVE-2025-62408 Medium 5.9 c-ares has a Use After Free vulnerability when connection is cleaned up after error 0.4%
• CVE-2025-31498 High 8.3 c-ares has a use-after-free in read_answers() 0.6%
• CVE-2024-25629 Medium 4.4 c-ares out of bounds read in ares__read_line() 0.4%
• CVE-2023-32067 High 7.5 0-byte UDP payload DoS in c-ares 1.6%
• CVE-2023-31147 Medium 5.9 Insufficient randomness in generation of DNS query IDs in c-ares 0.9%
• CVE-2023-31130 Medium 4.1 Buffer Underwrite in ares_inet_net_pton() 0.4%
• CVE-2023-31124 Low 3.7 AutoTools does not set CARES_RANDOM_FILE during cross compilation 0.9%