Product by Ubuntu
C-ares
5 known vulnerabilities in C-ares (Ubuntu), 0 of them actively exploited (CISA KEV).
Key figures
5
Vulnerabilities
0
Actively exploited (KEV)
0
Used by ransomware
0
Critical
Vulnerabilities
Actively exploited vulnerabilities (CISA KEV) first, then by priority. Click a column header to re-sort the table.
| High | CVE-2026-33630 | C-ares: Double Free | 7.5 | |
| High | CVE-2022-4904 | C-ares: Improper Input Validation | 8.6 | |
| High | CVE-2026-69184 | c-ares: CPU-exhaustion denial of service via unbounded DNS name compression pointer chains | 7.5 | |
| Medium | CVE-2026-69186 | c-ares: Memory-amplification denial of service via unvalidated DNS header record counts | 5.3 | |
| Medium | CVE-2020-22217 | C-ares: Buffer Overflow | 5.9 |