# Mozilla Thunderbird (en-US) 102.0

Mozilla Thunderbird (en-US) 102.0, released June 29, 2022, fixes 19 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.

- Web page: https://patchblox.com/security/fix/windows-app/mozilla.thunderbird-102.0
- Platform: Windows apps
- Released: Jun 29, 2022
- Priority: High (Closes CVE-2022-2200, high severity)
- CVEs: 19, exploited: 0, on CISA KEV: 0
- Superseded by: [Mozilla Thunderbird (en-US) 159.0](https://patchblox.com/security/data/product/windows-app/mozilla-thunderbird-en-us.md), the latest version, which also fixes every CVE listed here

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [Mozilla Thunderbird (en-US)](https://patchblox.com/security/data/product/windows-app/mozilla-thunderbird-en-us.md) |  | 102.0 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2022-2200](https://patchblox.com/security/data/cve/CVE-2022-2200.md) | High | Mozilla Thunderbird and 4 others: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') | 9.8 | 0.2394 |  |
| [CVE-2022-31736](https://patchblox.com/security/data/cve/CVE-2022-31736.md) | High | Mozilla Thunderbird and 4 others: Permissive Cross-domain Policy with Untrusted Domains | 9.8 | 0.0111 |  |
| [CVE-2022-34470](https://patchblox.com/security/data/cve/CVE-2022-34470.md) | High | Mozilla Thunderbird and 4 others: Use After Free | 9.8 | 0.0109 |  |
| [CVE-2022-34484](https://patchblox.com/security/data/cve/CVE-2022-34484.md) | High | Mozilla Thunderbird and 4 others: Use After Free | 9.8 | 0.0100 |  |
| [CVE-2022-34468](https://patchblox.com/security/data/cve/CVE-2022-34468.md) | High | Mozilla Thunderbird and 4 others: Inclusion of Functionality from Untrusted Control Sphere | 9.8 | 0.0096 |  |
| [CVE-2022-31747](https://patchblox.com/security/data/cve/CVE-2022-31747.md) | High | Mozilla Thunderbird and 4 others: Improper Restriction of Operations within the Bounds of a Memory Buffer | 9.8 | 0.0094 |  |
| [CVE-2022-31737](https://patchblox.com/security/data/cve/CVE-2022-31737.md) | High | Mozilla Thunderbird and 4 others: Out-of-bounds Write | 9.8 | 0.0087 |  |
| [CVE-2022-34481](https://patchblox.com/security/data/cve/CVE-2022-34481.md) | High | Mozilla Thunderbird and 4 others: Integer Overflow or Wraparound | 9.8 | 0.0083 |  |
| [CVE-2022-31741](https://patchblox.com/security/data/cve/CVE-2022-31741.md) | High | Mozilla Thunderbird and 4 others: Use of Uninitialized Resource | 9.8 | 0.0071 |  |
| [CVE-2022-31739](https://patchblox.com/security/data/cve/CVE-2022-31739.md) | High | Mozilla Thunderbird and 4 others: External Control of File Name or Path | 8.8 | 0.0071 |  |
| [CVE-2022-31740](https://patchblox.com/security/data/cve/CVE-2022-31740.md) | High | Mozilla Thunderbird and 4 others: Improper Restriction of Operations within the Bounds of a Memory Buffer | 9.8 | 0.0069 |  |
| [CVE-2022-31742](https://patchblox.com/security/data/cve/CVE-2022-31742.md) | High | Mozilla Thunderbird and 4 others: Observable Discrepancy | 9.8 | 0.0063 |  |
| [CVE-2022-31738](https://patchblox.com/security/data/cve/CVE-2022-31738.md) | High | Mozilla Thunderbird and 4 others: Authentication Bypass by Spoofing | 9.8 | 0.0062 |  |
| [CVE-2022-31744](https://patchblox.com/security/data/cve/CVE-2022-31744.md) | High | Mozilla Thunderbird and 4 others: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | 9.8 | 0.0062 |  |
| [CVE-2022-34472](https://patchblox.com/security/data/cve/CVE-2022-34472.md) | High | Mozilla Thunderbird and 4 others: Improper Check or Handling of Exceptional Conditions | 9.8 | 0.0060 |  |
| [CVE-2022-2226](https://patchblox.com/security/data/cve/CVE-2022-2226.md) | High | Mozilla Thunderbird and 1 other: Authentication Bypass by Capture-replay | 9.8 | 0.0044 |  |
| [CVE-2022-1834](https://patchblox.com/security/data/cve/CVE-2022-1834.md) | High | Mozilla Thunderbird and 1 other: Improper Certificate Validation | 9.8 | 0.0040 |  |
| [CVE-2021-40529](https://patchblox.com/security/data/cve/CVE-2021-40529.md) | Routine | Mozilla Thunderbird and 1 other: The ElGamal implementation in Botan through 2.18.1, as used in Thunderbird and other products, allows… | 5.9 | 0.0153 |  |
| [CVE-2022-34478](https://patchblox.com/security/data/cve/CVE-2022-34478.md) | Routine | Mozilla Thunderbird and 4 others: URL Redirection to Untrusted Site ('Open Redirect') | 6.5 | 0.0080 |  |

---

Data as of 2026-11-09T07:25:28Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.