Linux · 
Ubuntu · Package update · September 16, 2026
Ubuntu · Package update · September 16, 2026bind9utils 1:9.18.30-0ubuntu0.20.04.2+esm3: bind9utils 1:9.18.30-0ubuntu0.20.04.2+esm3 for Ubuntu 20.04 LTS (focal)
bind9utils 1:9.18.30-0ubuntu0.20.04.2+esm3, released September 16, 2026, fixes 20 CVEs in bind9utils. None of them is reported as exploited. Patch Radar priority: High. The product is no longer supported.
HighUnsupported product
CVEs closed
20
None rated Critical
Exploited
0
None reported
Highest CVSS
8.6
Base score, 0 to 10
Highest EPSS
0.0172
77th percentile
Priority of the 20 CVEs
Patch now 0
Urgent 0
High 13
Routine 7
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| bind9utils | Ubuntu 20.04 LTS (focal) | 1:9.18.30-0ubuntu0.20.04.2+esm3 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| High | CVE-2026-1519 | Excessive NSEC3 iterations cause high CPU load during insecure delegation validation | 7.5 | 0.0172 | None reported |
| High | CVE-2026-19666 | Use-after-free in query_addnoqnameproof() via the DNS64 filter64 path | 7.5 | 0.0057 | None reported |
| High | CVE-2026-19667 | Remote assertion failure via 16-bit length truncation in `dns_ncache_add()` | 7.5 | 0.0057 | None reported |
| High | CVE-2026-80274 | Validating resolver can abort while caching a mismatched NOQNAME proof | 7.5 | 0.0057 | None reported |
| High | CVE-2026-81563 | SVCB AliasMode additional-data error leaks qpcache references | 7.5 | 0.0057 | None reported |
| High | CVE-2026-81736 | bind9.18: Set limit to following HTTPS/SVCB aliases | 7.5 | 0.0057 | None reported |
| High | CVE-2026-11622 | Potential memory usage beyond configured limits | 8.6 | 0.0054 | None reported |
| High | CVE-2026-13204 | Unexpected exit in certain situations with NSEC and NSEC3 both present | 8.6 | 0.0052 | None reported |
| High | CVE-2026-19662 | qpcache NOQNAME proof use-after-free crashes recursive resolver | 8.1 | 0.0046 | None reported |
| High | CVE-2026-11331 | Potential wildcard CNAME RPZ policy bypass | 8.6 | 0.0043 | None reported |
| High | CVE-2026-11721 | Cache poisoning possible with label count discrepancy, RRSIG, and wildcards | 8.6 | 0.0040 | None reported |
| High | CVE-2026-10723 | Incorrect acceptance of NSEC3 records | 8.6 | 0.0027 | None reported |
| High | CVE-2026-13321 | DNSSEC Validation Bypass via Out-of-Zone NSEC Next Field | 8.6 | 0.0022 | None reported |
| Routine | CVE-2026-19668 | Resource Exhaustion via Excessive DNSSEC Cryptographic Material Matching | 5.3 | 0.0048 | None reported |
| Routine | CVE-2026-75029 | libdns-export1100: In a query response, an attacker may send `named` multiple copies of a record that should only exist once (such as an... | 5.3 | 0.0048 | None reported |
| Routine | CVE-2026-10822 | Key Record using PRIVATEDNS algorithm may lead to unexpected exit | 6.5 | 0.0042 | None reported |
| Routine | CVE-2026-19033 | bind9: For a secondary zone with transfers restricted by TSIG, `named` may start to serve the data provided in a zone transf... | 6.5 | 0.0024 | None reported |
| Routine | CVE-2026-19941 | checkwildcard() accepts an out-of-zone NSEC as a wildcard-nonexistence proof | 5.9 | 0.0023 | None reported |
| Routine | CVE-2026-77119 | bind9: A validly signed NSEC3 from an unrelated sibling zone may be accepted as an insecurity proof, downgrading a secure de... | 5.9 | 0.0023 | None reported |
| Routine | CVE-2026-78301 | Out-of-zone database nodes can become authoritative zone cuts | 5.8 | 0.0021 | None reported |
Showing 1 to 20 of 20
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