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CVE-2026-3119

Under certain conditions, `named` may crash when processing a correctly signed query containing a TKEY record. The affected code can only be reached if an incoming request has a valid transaction signature (TSIG) from a key declared in the `named` configuration. This issue affects BIND 9 versions 9.20.0 through 9.20.20, 9.21.0 through 9.21.19, and 9.20.9-S1 through 9.20.20-S1. BIND 9 versions 9.18.0 through 9.18.46 and 9.18.11-S1 through 9.18.46-S1 are NOT affected.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:d861ba8e1fbee49f3c1606d5e68ad84cbeafb0dbc13810b6cdb9daf7f73a092b
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"defaultStatus":"unaffected","product":"BIND 9","vendor":"ISC","versions":[{"lessThanOrEqual":"9.20.20","status":"affected","version":"9.20.0","versionType":"custom"},{"lessThanOrEqual":"9.21.19","status":"affected","version":"9.21.0","versionType":"custom"},{"lessThanOrEqual":"9.20.20-S1","status":"affected","version":"9.20.9-S1","versionType":"custom"},{"lessThanOrEqual":"9.18.46","status":"unaffected","version":"9.18.0","versionType":"custom"},{"lessThanOrEqual":"9.18.46-S1","status":"unaffected","version":"9.18.11-S1","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:1293b3a6a0971db61c6886ff4afe3e98e0f2edfcd74db26838a295d4ad2a173d · sha256:d094e1e9d830f529… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:1293b3a6a0971db61c6886ff4afe3e98e0f2edfcd74db26838a295d4ad2a173d · sha256:d094e1e9d830f529… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-617","description":"CWE-617 Reachable Assertion","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:1293b3a6a0971db61c6886ff4afe3e98e0f2edfcd74db26838a295d4ad2a173d · sha256:d094e1e9d830f529… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"tags":["patch"],"url":"https://downloads.isc.org/isc/bind9/9.20.21"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1293b3a6a0971db61c6886ff4afe3e98e0f2edfcd74db26838a295d4ad2a173d · sha256:d094e1e9d830f529… · /containers/cna/references/1
{"tags":["patch"],"url":"https://downloads.isc.org/isc/bind9/9.21.20"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1293b3a6a0971db61c6886ff4afe3e98e0f2edfcd74db26838a295d4ad2a173d · sha256:d094e1e9d830f529… · /containers/cna/references/2
{"name":"CVE-2026-3119","tags":["vendor-advisory"],"url":"https://kb.isc.org/docs/cve-2026-3119"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1293b3a6a0971db61c6886ff4afe3e98e0f2edfcd74db26838a295d4ad2a173d · sha256:d094e1e9d830f529… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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