# RHSA-2025:14743: thunderbird security update

RHSA-2025:14743, released August 27, 2025, fixes 5 CVEs in thunderbird (version 0:128.14.0-3.el8_10). None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/rhsa-2025-14743
- Platform: Linux
- Released: Aug 27, 2025
- Priority: High (Closes CVE-2025-9179, high severity)
- CVEs: 5, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://access.redhat.com/errata/RHSA-2025:14743

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [thunderbird](https://patchblox.com/security/data/product/linux/thunderbird.md) | RHEL 8 | 0:128.14.0-3.el8_10 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2025-9179](https://patchblox.com/security/data/cve/CVE-2025-9179.md) | High | Sandbox escape due to invalid pointer in the Audio/Video: GMP component | 9.8 | 0.0061 |  |
| [CVE-2025-9185](https://patchblox.com/security/data/cve/CVE-2025-9185.md) | High | Memory safety bugs fixed in Firefox ESR 115.27, Firefox ESR 128.14, Thunderbird ESR 128.14, Firefox ESR 140.2, Thunderbird ESR 140.2, Firefox 142 and Thunderbird 142 | 8.1 | 0.0051 |  |
| [CVE-2025-9182](https://patchblox.com/security/data/cve/CVE-2025-9182.md) | High | Denial-of-service due to out-of-memory in the Graphics: WebRender component | 7.5 | 0.0041 |  |
| [CVE-2025-9181](https://patchblox.com/security/data/cve/CVE-2025-9181.md) | High | Uninitialized memory in the JavaScript Engine component | 7.5 | 0.0039 |  |
| [CVE-2025-9180](https://patchblox.com/security/data/cve/CVE-2025-9180.md) | High | Same-origin policy bypass in the Graphics: Canvas2D component | 8.1 | 0.0027 |  |

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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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo