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CVE-2026-6774

Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 150 and Thunderbird 150.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:3f1f7d34143234c9e12bbaa452f0979a2dd4a6fbf3bbff0908abd9d0da958873
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"product":"Firefox","vendor":"Mozilla","versions":[{"lessThanOrEqual":"*","status":"unaffected","version":"150","versionType":"rpm"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:08c6f880db0f88aa973f8de482b8564ca66b090401940a914e4a072d1354377e · sha256:d47d72c61f8f3782… · /containers/cna/affected/0

{"product":"Thunderbird","vendor":"Mozilla","versions":[{"lessThanOrEqual":"*","status":"unaffected","version":"150","versionType":"rpm"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:08c6f880db0f88aa973f8de482b8564ca66b090401940a914e4a072d1354377e · sha256:d47d72c61f8f3782… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"product":"Firefox","vendor":"Mozilla","versions":[{"lessThanOrEqual":"*","status":"unaffected","version":"150","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:08c6f880db0f88aa973f8de482b8564ca66b090401940a914e4a072d1354377e · sha256:d47d72c61f8f3782… · /containers/cna/affected/0
{"product":"Thunderbird","vendor":"Mozilla","versions":[{"lessThanOrEqual":"*","status":"unaffected","version":"150","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:08c6f880db0f88aa973f8de482b8564ca66b090401940a914e4a072d1354377e · sha256:d47d72c61f8f3782… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.4,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:08c6f880db0f88aa973f8de482b8564ca66b090401940a914e4a072d1354377e · sha256:d47d72c61f8f3782… · /containers/adp/0/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-693","description":"CWE-693 Protection Mechanism Failure","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:08c6f880db0f88aa973f8de482b8564ca66b090401940a914e4a072d1354377e · sha256:d47d72c61f8f3782… · /containers/adp/0/problemTypes/0/descriptions/0

Source references

3 source assertions
{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=2016915"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:08c6f880db0f88aa973f8de482b8564ca66b090401940a914e4a072d1354377e · sha256:d47d72c61f8f3782… · /containers/cna/references/0
{"url":"https://www.mozilla.org/security/advisories/mfsa2026-30/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:08c6f880db0f88aa973f8de482b8564ca66b090401940a914e4a072d1354377e · sha256:d47d72c61f8f3782… · /containers/cna/references/1
{"url":"https://www.mozilla.org/security/advisories/mfsa2026-33/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:08c6f880db0f88aa973f8de482b8564ca66b090401940a914e4a072d1354377e · sha256:d47d72c61f8f3782… · /containers/cna/references/2

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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