CVE Explorer
CVE-2025-6425
An attacker who enumerated resources from the WebCompat extension could have obtained a persistent UUID that identified the browser, and persisted between containers and normal/private browsing mode, but not profiles. This vulnerability was fixed in Firefox 140, Firefox ESR 115.25, Firefox ESR 128.12, Thunderbird 140, and Thunderbird 128.12.
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":"115.*","status":"unaffected","version":"115.25","versionType":"rpm"},{"lessThanOrEqual":"128.*","status":"unaffected","version":"128.12","versionType":"rpm"},{"lessThanOrEqual":"*","status":"unaffected","version":"140","versionType":"rpm"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:bc5fcab9c01a70298faa8d00d6ac85691e6f8f916cd107045acaa03326a818fd · sha256:dd2cf98839c382d0… · /containers/cna/affected/0
{"product":"Thunderbird","vendor":"Mozilla","versions":[{"lessThanOrEqual":"128.*","status":"unaffected","version":"128.12","versionType":"rpm"},{"lessThanOrEqual":"*","status":"unaffected","version":"140","versionType":"rpm"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:bc5fcab9c01a70298faa8d00d6ac85691e6f8f916cd107045acaa03326a818fd · sha256:dd2cf98839c382d0… · /containers/cna/affected/1
Affected products and versions
2 source assertions{"product":"Firefox","vendor":"Mozilla","versions":[{"lessThanOrEqual":"115.*","status":"unaffected","version":"115.25","versionType":"rpm"},{"lessThanOrEqual":"128.*","status":"unaffected","version":"128.12","versionType":"rpm"},{"lessThanOrEqual":"*","status":"unaffected","version":"140","versionType":"rpm"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:bc5fcab9c01a70298faa8d00d6ac85691e6f8f916cd107045acaa03326a818fd · sha256:dd2cf98839c382d0… · /containers/cna/affected/0
{"product":"Thunderbird","vendor":"Mozilla","versions":[{"lessThanOrEqual":"128.*","status":"unaffected","version":"128.12","versionType":"rpm"},{"lessThanOrEqual":"*","status":"unaffected","version":"140","versionType":"rpm"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:bc5fcab9c01a70298faa8d00d6ac85691e6f8f916cd107045acaa03326a818fd · sha256:dd2cf98839c382d0… · /containers/cna/affected/1
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.3,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:bc5fcab9c01a70298faa8d00d6ac85691e6f8f916cd107045acaa03326a818fd · sha256:dd2cf98839c382d0… · /containers/adp/0/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-200","description":"CWE-200 Exposure of Sensitive Information to an Unauthorized Actor","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:bc5fcab9c01a70298faa8d00d6ac85691e6f8f916cd107045acaa03326a818fd · sha256:dd2cf98839c382d0… · /containers/adp/0/problemTypes/0/descriptions/0
Source references
8 source assertions{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1717672"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:bc5fcab9c01a70298faa8d00d6ac85691e6f8f916cd107045acaa03326a818fd · sha256:dd2cf98839c382d0… · /containers/cna/references/0
{"url":"https://lists.debian.org/debian-lts-announce/2025/06/msg00029.html"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:bc5fcab9c01a70298faa8d00d6ac85691e6f8f916cd107045acaa03326a818fd · sha256:dd2cf98839c382d0… · /containers/adp/1/references/1
{"url":"https://lists.debian.org/debian-lts-announce/2025/07/msg00002.html"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:bc5fcab9c01a70298faa8d00d6ac85691e6f8f916cd107045acaa03326a818fd · sha256:dd2cf98839c382d0… · /containers/adp/1/references/0
{"url":"https://www.mozilla.org/security/advisories/mfsa2025-51/"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:bc5fcab9c01a70298faa8d00d6ac85691e6f8f916cd107045acaa03326a818fd · sha256:dd2cf98839c382d0… · /containers/cna/references/1
{"url":"https://www.mozilla.org/security/advisories/mfsa2025-52/"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:bc5fcab9c01a70298faa8d00d6ac85691e6f8f916cd107045acaa03326a818fd · sha256:dd2cf98839c382d0… · /containers/cna/references/2
{"url":"https://www.mozilla.org/security/advisories/mfsa2025-53/"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:bc5fcab9c01a70298faa8d00d6ac85691e6f8f916cd107045acaa03326a818fd · sha256:dd2cf98839c382d0… · /containers/cna/references/3
{"url":"https://www.mozilla.org/security/advisories/mfsa2025-54/"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:bc5fcab9c01a70298faa8d00d6ac85691e6f8f916cd107045acaa03326a818fd · sha256:dd2cf98839c382d0… · /containers/cna/references/4
{"url":"https://www.mozilla.org/security/advisories/mfsa2025-55/"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:bc5fcab9c01a70298faa8d00d6ac85691e6f8f916cd107045acaa03326a818fd · sha256:dd2cf98839c382d0… · /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.