Mozilla Thunderbird (en-US) 91.2.0
Mozilla Thunderbird (en-US) 91.2.0, released October 4, 2021, fixes 6 CVEs in Mozilla Thunderbird (en-US). None of them is reported as exploited. Patch Radar priority: High. The latest Mozilla Thunderbird (en-US) is 159.0, which also fixes every one of these CVEs.
Superseded. The latest Mozilla Thunderbird (en-US) is 159.0, which also fixes every CVE on this page. Install that instead.
Priority of the 6 CVEs
Applies to
| Product | Version |
|---|---|
| Mozilla Thunderbird (en-US) | 91.2.0 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| High | CVE-2021-38496 | Mozilla Firefox ESR and 3 others: During operations on MessageTasks, a task may have been removed while it was still scheduled, resulting… | 8.8 | 0.0166 | None reported |
| High | CVE-2021-38498 | Mozilla Firefox ESR and 3 others: During process shutdown, a document could have caused a use-after-free of a languages service object,… | 7.5 | 0.0147 | None reported |
| High | CVE-2021-38500 | Mozilla Firefox ESR and 3 others: Mozilla developers reported memory safety bugs present in Firefox 92 and Firefox ESR 91.1. | 8.8 | 0.0127 | None reported |
| High | CVE-2021-38502 | Mozilla Thunderbird and 1 other: Thunderbird ignored the configuration to require STARTTLS security for an SMTP connection. | 7.5 | 0.0110 | None reported |
| High | CVE-2021-38501 | Mozilla Firefox ESR and 3 others: Mozilla developers reported memory safety bugs present in Firefox 92 and Firefox ESR 91.1. | 8.8 | 0.0105 | None reported |
| Routine | CVE-2021-38497 | Mozilla Firefox ESR and 3 others: Through use of reportValidity() and window.open(), a plain-text validation message could have been overlaid… | 6.5 | 0.0059 | None reported |
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