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Threatist priority CRITICAL 0 HIGH 0 MEDIUM 2 LOW 0

Signals Exploited in the wild (KEV) 0 Patch available 2 No fix listed 0 Has CVE 2

Fix status Fixed 0 Partial 2 Will not fix 0 Deferred 0 No fix listed 0

Impact type Code execution 1 Privilege escalation 0 Security bypass 0 Information disclosure 0 Tampering 0 Denial of service 0 Spoofing 0 Cross-site scripting 0 SQL injection 0

Attack vector Network 2 Adjacent network 0 Local 0 Physical 0

Requirements No authentication 2 No user interaction 0

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Weakness (CWE) CWE-416 Use After Free 1

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Release: Mozilla Firefox ESR, Thunderbird 78.15, 91.2 × Clear all filters

TI-2021-16096 CVE-2021-38496 · GHSA-3rfx-pjp7-cvfp

Use after free in Mozilla Thunderbird

Priority MEDIUM 41

During operations on MessageTasks, a task may have been removed while it was still scheduled, resulting in memory corruption and a potentially exploitable crash.

CVSS 3.1HIGH 8.8· Network · No auth · User interaction · EPSS 0.01659 · Published 2021-11-03 · Partial fix · 78.15, 91.2 +1 CWE-416

TI-2021-16100 CVE-2021-38500 · GHSA-pv72-mgh4-jqvg

Mozilla developers reported memory safety bugs present in Firefox 92 and Firefox ESR 91.1.

Priority MEDIUM 41

Mozilla developers reported memory safety bugs present in Firefox 92 and Firefox ESR 91.1.

CVSS 3.1HIGH 8.8· Network · No auth · User interaction · EPSS 0.01273 · Published 2021-11-03 · Partial fix · 78.15, 91.2 +1

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