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CVE-2026-7321

Sandbox escape due to incorrect boundary conditions in the WebRTC: Networking component. This vulnerability was fixed in Firefox 150, Thunderbird 150, Firefox ESR 140.10.1, and Thunderbird 140.10.1.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:c7f9394038a5bfad648ba98d1e04bbfbd67e1243378e1ef59cbee9da1849be5e
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":"140.10.1","versionType":"rpm"},{"lessThanOrEqual":"*","status":"unaffected","version":"150","versionType":"rpm"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:901b8704509817b747ab1c9bdb280b313d77cbfae4f3960978fb1789ec460489 · sha256:1ab4710c8852f5f4… · /containers/cna/affected/0

{"product":"Thunderbird","vendor":"Mozilla","versions":[{"lessThanOrEqual":"140.*","status":"unaffected","version":"140.10.1","versionType":"rpm"},{"lessThanOrEqual":"*","status":"unaffected","version":"150","versionType":"rpm"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:901b8704509817b747ab1c9bdb280b313d77cbfae4f3960978fb1789ec460489 · sha256:1ab4710c8852f5f4… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"product":"Firefox","vendor":"Mozilla","versions":[{"lessThanOrEqual":"140.*","status":"unaffected","version":"140.10.1","versionType":"rpm"},{"lessThanOrEqual":"*","status":"unaffected","version":"150","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:901b8704509817b747ab1c9bdb280b313d77cbfae4f3960978fb1789ec460489 · sha256:1ab4710c8852f5f4… · /containers/cna/affected/0
{"product":"Thunderbird","vendor":"Mozilla","versions":[{"lessThanOrEqual":"140.*","status":"unaffected","version":"140.10.1","versionType":"rpm"},{"lessThanOrEqual":"*","status":"unaffected","version":"150","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:901b8704509817b747ab1c9bdb280b313d77cbfae4f3960978fb1789ec460489 · sha256:1ab4710c8852f5f4… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.6,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:901b8704509817b747ab1c9bdb280b313d77cbfae4f3960978fb1789ec460489 · sha256:1ab4710c8852f5f4… · /containers/adp/0/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-120","description":"CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:901b8704509817b747ab1c9bdb280b313d77cbfae4f3960978fb1789ec460489 · sha256:1ab4710c8852f5f4… · /containers/adp/0/problemTypes/0/descriptions/0

Source references

5 source assertions
{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=2029461"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:901b8704509817b747ab1c9bdb280b313d77cbfae4f3960978fb1789ec460489 · sha256:1ab4710c8852f5f4… · /containers/cna/references/0
{"url":"https://www.mozilla.org/security/advisories/mfsa2026-30/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:901b8704509817b747ab1c9bdb280b313d77cbfae4f3960978fb1789ec460489 · sha256:1ab4710c8852f5f4… · /containers/cna/references/1
{"url":"https://www.mozilla.org/security/advisories/mfsa2026-33/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:901b8704509817b747ab1c9bdb280b313d77cbfae4f3960978fb1789ec460489 · sha256:1ab4710c8852f5f4… · /containers/cna/references/2
{"url":"https://www.mozilla.org/security/advisories/mfsa2026-36/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:901b8704509817b747ab1c9bdb280b313d77cbfae4f3960978fb1789ec460489 · sha256:1ab4710c8852f5f4… · /containers/cna/references/3
{"url":"https://www.mozilla.org/security/advisories/mfsa2026-39/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:901b8704509817b747ab1c9bdb280b313d77cbfae4f3960978fb1789ec460489 · sha256:1ab4710c8852f5f4… · /containers/cna/references/4

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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