# RHSA-2023:6191: thunderbird security update

RHSA-2023:6191, released October 30, 2023, fixes 7 CVEs in thunderbird (version 0:115.4.1-1.el9_2). None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/rhsa-2023-6191
- Platform: Linux
- Released: Oct 30, 2023
- Priority: High (Closes CVE-2023-44488, high severity)
- CVEs: 7, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://access.redhat.com/errata/RHSA-2023:6191

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [thunderbird](https://patchblox.com/security/data/product/linux/thunderbird.md) | RHEL 9 | 0:115.4.1-1.el9_2 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2023-44488](https://patchblox.com/security/data/cve/CVE-2023-44488.md) | High | libvpx: This update for libvpx fixes the following issues:  - CVE-2024-5197: Fixed interger overflow when calling vpx_img_all... | 8.8 | 0.0216 |  |
| [CVE-2023-5730](https://patchblox.com/security/data/cve/CVE-2023-5730.md) | High | Mozilla Firefox ESR and 5 others: Memory safety bugs present in Firefox 118, Firefox ESR 115.3, and Thunderbird 115.3. | 9.8 | 0.0154 |  |
| [CVE-2023-5724](https://patchblox.com/security/data/cve/CVE-2023-5724.md) | High | Mozilla Firefox ESR and 5 others: Uncontrolled Resource Consumption | 7.5 | 0.0152 |  |
| [CVE-2023-5728](https://patchblox.com/security/data/cve/CVE-2023-5728.md) | High | Mozilla Firefox ESR and 5 others: Use After Free | 7.5 | 0.0132 |  |
| [CVE-2023-5721](https://patchblox.com/security/data/cve/CVE-2023-5721.md) | High | Mozilla Firefox ESR and 5 others: It was possible for certain browser prompts and dialogs to be activated or dismissed unintentionally… | 7.5 | 0.0081 |  |
| [CVE-2023-5732](https://patchblox.com/security/data/cve/CVE-2023-5732.md) | Routine | Address bar spoofing via bidirectional characters | 6.5 | 0.0105 |  |
| [CVE-2023-5725](https://patchblox.com/security/data/cve/CVE-2023-5725.md) | Routine | Mozilla Firefox ESR and 5 others: A malicious installed WebExtension could open arbitrary URLs, which under the right circumstance could… | 6.1 | 0.0094 |  |

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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo