# RHSA-2022:6717: thunderbird security update

RHSA-2022:6717, released September 26, 2022, fixes 11 CVEs in thunderbird (version 0:102.3.0-3.el9_0). None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/rhsa-2022-6717
- Platform: Linux
- Released: Sep 26, 2022
- Priority: High (Closes CVE-2022-40959, high severity)
- CVEs: 11, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://access.redhat.com/errata/RHSA-2022:6717

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [thunderbird](https://patchblox.com/security/data/product/linux/thunderbird.md) | RHEL 9 | 0:102.3.0-3.el9_0 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2022-40959](https://patchblox.com/security/data/cve/CVE-2022-40959.md) | High | Mozilla Thunderbird and 4 others: Insecure Storage of Sensitive Information | 8.8 | 0.0146 |  |
| [CVE-2022-40962](https://patchblox.com/security/data/cve/CVE-2022-40962.md) | High | Mozilla Thunderbird and 4 others: Out-of-bounds Write | 8.8 | 0.0143 |  |
| [CVE-2022-40957](https://patchblox.com/security/data/cve/CVE-2022-40957.md) | High | Mozilla Thunderbird and 4 others: Improper Handling of Inconsistent Structural Elements | 8.8 | 0.0124 |  |
| [CVE-2022-40958](https://patchblox.com/security/data/cve/CVE-2022-40958.md) | High | Mozilla Thunderbird and 4 others: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') | 8.8 | 0.0118 |  |
| [CVE-2022-40960](https://patchblox.com/security/data/cve/CVE-2022-40960.md) | High | Mozilla Thunderbird and 4 others: Use After Free | 8.8 | 0.0108 |  |
| [CVE-2022-40956](https://patchblox.com/security/data/cve/CVE-2022-40956.md) | High | Mozilla Thunderbird and 4 others: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | 8.8 | 0.0094 |  |
| [CVE-2022-36059](https://patchblox.com/security/data/cve/CVE-2022-36059.md) | High | thunderbird: matrix-js-sdk is a Matrix messaging protocol Client-Server SDK for JavaScript | 8.8 | 0.0093 |  |
| [CVE-2022-3033](https://patchblox.com/security/data/cve/CVE-2022-3033.md) | High | Mozilla Thunderbird and 1 other: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | 8.8 | 0.0081 |  |
| [CVE-2022-3032](https://patchblox.com/security/data/cve/CVE-2022-3032.md) | High | Mozilla Thunderbird and 1 other: When receiving an HTML email that contained an <code>iframe</code> element, which used a <code>srcdoc</code>… | 8.8 | 0.0071 |  |
| [CVE-2022-3034](https://patchblox.com/security/data/cve/CVE-2022-3034.md) | High | Mozilla Thunderbird and 1 other: Improper Restriction of Rendered UI Layers or Frames | 8.8 | 0.0057 |  |
| [CVE-2022-3266](https://patchblox.com/security/data/cve/CVE-2022-3266.md) | Routine | Mozilla Thunderbird and 4 others: Out-of-bounds Read | 5.5 | 0.0030 |  |

---

Data as of 2026-11-07T12:40:37Z 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