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CVE-2026-15718

We are aware that exploit code for this is public however we are not aware of any attacks in the wild abusing this flaw. This vulnerability was fixed in Firefox 152.0.6, Firefox ESR 140.13, and Thunderbird 140.13.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:a040938336369ec3f0714b3fc4169c346aea89c7c8cb4ad4485d5d626195c7c1
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":"140.*","status":"unaffected","version":"140.13","versionType":"rpm"},{"lessThanOrEqual":"*","status":"unaffected","version":"152.0.6","versionType":"rpm"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:367952304b17f6d1295fc5f4143b0e8f16b7d8c17e39d95b5baecb733aee351c · sha256:795d6e76dcbd42d7… · /containers/cna/affected/0

{"product":"Thunderbird","vendor":"Mozilla","versions":[{"lessThanOrEqual":"*","status":"unaffected","version":"140.13","versionType":"rpm"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:367952304b17f6d1295fc5f4143b0e8f16b7d8c17e39d95b5baecb733aee351c · sha256:795d6e76dcbd42d7… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"product":"Firefox","vendor":"Mozilla","versions":[{"lessThanOrEqual":"140.*","status":"unaffected","version":"140.13","versionType":"rpm"},{"lessThanOrEqual":"*","status":"unaffected","version":"152.0.6","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:367952304b17f6d1295fc5f4143b0e8f16b7d8c17e39d95b5baecb733aee351c · sha256:795d6e76dcbd42d7… · /containers/cna/affected/0
{"product":"Thunderbird","vendor":"Mozilla","versions":[{"lessThanOrEqual":"*","status":"unaffected","version":"140.13","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:367952304b17f6d1295fc5f4143b0e8f16b7d8c17e39d95b5baecb733aee351c · sha256:795d6e76dcbd42d7… · /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_v5cvss
    urn:baitaphish:normalized-source-record:v2:367952304b17f6d1295fc5f4143b0e8f16b7d8c17e39d95b5baecb733aee351c · sha256:795d6e76dcbd42d7… · /containers/adp/0/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-763","description":"CWE-763 Release of Invalid Pointer or Reference","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:367952304b17f6d1295fc5f4143b0e8f16b7d8c17e39d95b5baecb733aee351c · sha256:795d6e76dcbd42d7… · /containers/adp/0/problemTypes/0/descriptions/0

Source references

4 source assertions
{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=2045443"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:367952304b17f6d1295fc5f4143b0e8f16b7d8c17e39d95b5baecb733aee351c · sha256:795d6e76dcbd42d7… · /containers/cna/references/0
{"url":"https://www.mozilla.org/security/advisories/mfsa2026-67/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:367952304b17f6d1295fc5f4143b0e8f16b7d8c17e39d95b5baecb733aee351c · sha256:795d6e76dcbd42d7… · /containers/cna/references/1
{"url":"https://www.mozilla.org/security/advisories/mfsa2026-70/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:367952304b17f6d1295fc5f4143b0e8f16b7d8c17e39d95b5baecb733aee351c · sha256:795d6e76dcbd42d7… · /containers/cna/references/2
{"url":"https://www.mozilla.org/security/advisories/mfsa2026-72/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:367952304b17f6d1295fc5f4143b0e8f16b7d8c17e39d95b5baecb733aee351c · sha256:795d6e76dcbd42d7… · /containers/cna/references/3

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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