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openSUSE Leap · Security advisory · September 1, 2026
openSUSE Leap · Security advisory · September 1, 2026OPENSUSE-SU-2026:21721-1: c-ares security update
OPENSUSE-SU-2026:21721-1, released September 1, 2026, fixes 3 CVEs in c-ares (version 1.34.8-160000.1.1). None of them is reported as exploited. Patch Radar priority: High.
High
CVEs closed
3
None rated Critical
Exploited
0
None reported
Highest CVSS
7.5
Base score, 0 to 10
Highest EPSS
0.0085
58th percentile
Priority of the 3 CVEs
Patch now 0
Urgent 0
High 2
Routine 1
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| c-ares | opensuse-leap 16.0 | 1.34.8-160000.1.1 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| High | CVE-2026-33630 | c-ares : Use-after-free / double-free in c-ares query-completion handling, remotely triggerable via ares_getaddrinfo() over TCP | 7.5 | 0.0085 | None reported |
| High | CVE-2026-69184 | c-ares: CPU-exhaustion denial of service via unbounded DNS name compression pointer chains | 7.5 | 0.0048 | None reported |
| Routine | CVE-2026-69186 | c-ares: Memory-amplification denial of service via unvalidated DNS header record counts | 5.3 | 0.0047 | None reported |
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