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CVE-2026-6767

Other issue in the Libraries component in NSS. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:c5812eb10eb32a821b834ea856c2973fb3148c31ac2183142ff5242b648662b8
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":"Thunderbird","vendor":"Mozilla","versions":[{"lessThanOrEqual":"140.*","status":"unaffected","version":"140.10","versionType":"rpm"},{"lessThanOrEqual":"*","status":"unaffected","version":"150","versionType":"rpm"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c23e6724fc1a2cfa71e4072072eb02dd4c56c8537dba3691432980a909e1075a · sha256:529b24985cd0b5e0… · /containers/cna/affected/1

{"product":"Firefox","vendor":"Mozilla","versions":[{"lessThanOrEqual":"115.*","status":"unaffected","version":"115.35","versionType":"rpm"},{"lessThanOrEqual":"140.*","status":"unaffected","version":"140.10","versionType":"rpm"},{"lessThanOrEqual":"*","status":"unaffected","version":"150","versionType":"rpm"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c23e6724fc1a2cfa71e4072072eb02dd4c56c8537dba3691432980a909e1075a · sha256:529b24985cd0b5e0… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"product":"Thunderbird","vendor":"Mozilla","versions":[{"lessThanOrEqual":"140.*","status":"unaffected","version":"140.10","versionType":"rpm"},{"lessThanOrEqual":"*","status":"unaffected","version":"150","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c23e6724fc1a2cfa71e4072072eb02dd4c56c8537dba3691432980a909e1075a · sha256:529b24985cd0b5e0… · /containers/cna/affected/1
{"product":"Firefox","vendor":"Mozilla","versions":[{"lessThanOrEqual":"115.*","status":"unaffected","version":"115.35","versionType":"rpm"},{"lessThanOrEqual":"140.*","status":"unaffected","version":"140.10","versionType":"rpm"},{"lessThanOrEqual":"*","status":"unaffected","version":"150","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c23e6724fc1a2cfa71e4072072eb02dd4c56c8537dba3691432980a909e1075a · sha256:529b24985cd0b5e0… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:c23e6724fc1a2cfa71e4072072eb02dd4c56c8537dba3691432980a909e1075a · sha256:529b24985cd0b5e0… · /containers/adp/0/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-119","description":"CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:c23e6724fc1a2cfa71e4072072eb02dd4c56c8537dba3691432980a909e1075a · sha256:529b24985cd0b5e0… · /containers/adp/0/problemTypes/0/descriptions/0

Source references

6 source assertions
{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=2023209"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c23e6724fc1a2cfa71e4072072eb02dd4c56c8537dba3691432980a909e1075a · sha256:529b24985cd0b5e0… · /containers/cna/references/0
{"url":"https://www.mozilla.org/security/advisories/mfsa2026-30/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c23e6724fc1a2cfa71e4072072eb02dd4c56c8537dba3691432980a909e1075a · sha256:529b24985cd0b5e0… · /containers/cna/references/1
{"url":"https://www.mozilla.org/security/advisories/mfsa2026-31/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c23e6724fc1a2cfa71e4072072eb02dd4c56c8537dba3691432980a909e1075a · sha256:529b24985cd0b5e0… · /containers/cna/references/2
{"url":"https://www.mozilla.org/security/advisories/mfsa2026-32/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c23e6724fc1a2cfa71e4072072eb02dd4c56c8537dba3691432980a909e1075a · sha256:529b24985cd0b5e0… · /containers/cna/references/3
{"url":"https://www.mozilla.org/security/advisories/mfsa2026-33/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c23e6724fc1a2cfa71e4072072eb02dd4c56c8537dba3691432980a909e1075a · sha256:529b24985cd0b5e0… · /containers/cna/references/4
{"url":"https://www.mozilla.org/security/advisories/mfsa2026-34/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c23e6724fc1a2cfa71e4072072eb02dd4c56c8537dba3691432980a909e1075a · sha256:529b24985cd0b5e0… · /containers/cna/references/5

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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