SUSE Unbound Critical Buffer Overflow Security Flaw 2026-2281-1
suse
June 5, 2026
An update that solves 11 vulnerabilities can now be installed.
Summary
## This update for unbound fixes the following issues * CVE-2026-32792: Packet of death with DNSCrypt (bsc#1265583). * CVE-2026-33278: Possible remote code execution during DNSSEC validation (bsc#1265587). * CVE-2026-40622: "Ghost domain name" variant (bsc#1265581). * CVE-2026-41292: Parsing a long list of incoming EDNS options degrades performance (bsc#1265580). * CVE-2026-42534: Jostle logic bypass degrades resolution performance (bsc#1265585). * CVE-2026-42923: Degradation of service with unbounded NSEC3 hash calculations (bsc#1265589). * CVE-2026-42944: Heap overflow and crash with multiple nsid, cookie, padding EDNS options (bsc#1265578). * CVE-2026-42959: Crash during DNSSEC validation of malicious content (bsc#1265586).
References
* bsc#1265578
* bsc#1265580
* bsc#1265581
* bsc#1265582
* bsc#1265583
* bsc#1265584
* bsc#1265585
* bsc#1265586
* bsc#1265587
* bsc#1265588
* bsc#1265589
Cross-
* CVE-2026-32792
* CVE-2026-33278
* CVE-2026-40622
* CVE-2026-41292
* CVE-2026-42534
* CVE-2026-42923
* CVE-2026-42944
* CVE-2026-42959
* CVE-2026-42960
* CVE-2026-44390
* CVE-2026-44608
CVSS scores:
* CVE-2026-32792 ( SUSE ): 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
* CVE-2026-32792 ( NVD ): 4.6
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Green
* CVE-2026-32792 ( NVD ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
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Severity
important
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Critical
Announcement ID: SUSE-SU-2026:2281-1
Release Date: 2026-06-05T12:12:48Z
Rating: important
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