Linux · openSUSE Leap · Security advisory · June 18, 2026

OPENSUSE-SU-2026:21083-1: unbound security update

OPENSUSE-SU-2026:21083-1, released June 18, 2026, fixes 10 CVEs in unbound (version 1.24.1-160000.2.1). None of them is reported as exploited. Patch Radar priority: Urgent.

Urgent
CVEs closed
10
1 rated Critical
Exploited
0
None reported
Highest CVSS
10.0
Base score, 0 to 10
Highest EPSS
0.0142
72nd percentile

Priority of the 10 CVEs

Patch now 0 Urgent 1 High 6 Routine 3

Fixed package versions

ProductReleaseFixed in
unboundopensuse-leap 16.01.24.1-160000.2.1

CVEs this fix closes

PriorityCVETitleCVSSEPSSExploitation
Urgent CVE-2026-33278 Possible arbitrary code execution during DNSSEC validation9.8 0.0142 None reported
High CVE-2026-42944 Heap overflow with multiple NSID, COOKIE, PADDING EDNS options8.1 0.0084 None reported
High CVE-2026-42959 Crash during DNSSEC validation of malicious content8.1 0.0081 None reported
High CVE-2026-41292 Long list of incoming EDNS options degrades performance7.5 0.0075 None reported
High CVE-2026-44390 Unbounded name compression in certain cases causes degradation of service7.5 0.0065 None reported
High CVE-2026-42534 Jostle logic bypass degrades resolution performance7.5 0.0060 None reported
High CVE-2026-42960 Possible cache poisoning via promiscuous records for the authority section10.0 0.0026 None reported
Routine CVE-2026-42923 Degradation of service with unbounded NSEC3 hash calculations5.3 0.0034 None reported
Routine CVE-2026-32792 Packet of death with DNSCrypt5.3 0.0034 None reported
Routine CVE-2026-44608 Use after free and crash under special conditions in RPZ code5.9 0.0026 None reported
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