Baitaphish
Security intelligence
SearchLatest briefing
CVE Explorer

CVE-2025-6433

If a user visited a webpage with an invalid TLS certificate, and granted an exception, the webpage was able to provide a WebAuthn challenge that the user would be prompted to complete. This is in violation of the WebAuthN spec which requires "a secure transport established without errors". This vulnerability was fixed in Firefox 140 and Thunderbird 140.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:57eb00cb13528eb5790af1cd0ce36a7ed0773fb836b2b2a21b928d54c8c20f87
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":"*","status":"unaffected","version":"140","versionType":"rpm"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:af11bbe43dac6d35524bec3b196489b44abbceeca8346032c8f5a2efc57c866f · sha256:6b3bb304c7ae3699… · /containers/cna/affected/1

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

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:af11bbe43dac6d35524bec3b196489b44abbceeca8346032c8f5a2efc57c866f · sha256:6b3bb304c7ae3699… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"product":"Thunderbird","vendor":"Mozilla","versions":[{"lessThanOrEqual":"*","status":"unaffected","version":"140","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:af11bbe43dac6d35524bec3b196489b44abbceeca8346032c8f5a2efc57c866f · sha256:6b3bb304c7ae3699… · /containers/cna/affected/1
{"product":"Firefox","vendor":"Mozilla","versions":[{"lessThanOrEqual":"*","status":"unaffected","version":"140","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:af11bbe43dac6d35524bec3b196489b44abbceeca8346032c8f5a2efc57c866f · sha256:6b3bb304c7ae3699… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.8,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:af11bbe43dac6d35524bec3b196489b44abbceeca8346032c8f5a2efc57c866f · sha256:6b3bb304c7ae3699… · /containers/adp/0/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-295","description":"CWE-295 Improper Certificate Validation","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:af11bbe43dac6d35524bec3b196489b44abbceeca8346032c8f5a2efc57c866f · sha256:6b3bb304c7ae3699… · /containers/adp/0/problemTypes/0/descriptions/0

Source references

3 source assertions
{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1954033"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:af11bbe43dac6d35524bec3b196489b44abbceeca8346032c8f5a2efc57c866f · sha256:6b3bb304c7ae3699… · /containers/cna/references/0
{"url":"https://www.mozilla.org/security/advisories/mfsa2025-51/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:af11bbe43dac6d35524bec3b196489b44abbceeca8346032c8f5a2efc57c866f · sha256:6b3bb304c7ae3699… · /containers/cna/references/1
{"url":"https://www.mozilla.org/security/advisories/mfsa2025-54/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:af11bbe43dac6d35524bec3b196489b44abbceeca8346032c8f5a2efc57c866f · sha256:6b3bb304c7ae3699… · /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.

← Back to CVE Explorer