# mapserver security updates

Patch Radar has 11 security fixes for mapserver, closing 7 CVEs. The newest is DEBIAN-CVE-2026-54354 (8.6.4-1), released September 21, 2026.

- Web page: https://patchblox.com/security/product/linux/mapserver
- Platform: Linux
- Supported: yes

## Security fixes, newest first

| Fix | Released | Fixed in | Priority | CVEs | Exploited |
|---|---|---|---|---:|---:|
| [DEBIAN-CVE-2026-54354](https://patchblox.com/security/data/fix/linux/debian-cve-2026-54354.md) | Sep 21, 2026 | Debian 14 8.6.4-1 | High | 1 | 0 |
| [DEBIAN-CVE-2026-54355](https://patchblox.com/security/data/fix/linux/debian-cve-2026-54355.md) | Sep 21, 2026 | Debian 14 8.6.4-1 | Routine | 1 | 0 |
| [DEBIAN-CVE-2026-45104](https://patchblox.com/security/data/fix/linux/debian-cve-2026-45104.md) | Jun 24, 2026 | Debian 14 8.6.3-1 | High | 1 | 0 |
| [DEBIAN-CVE-2026-42030](https://patchblox.com/security/data/fix/linux/debian-cve-2026-42030.md) | May 15, 2026 | Debian 14 8.6.2-1 | Routine | 1 | 0 |
| [DEBIAN-CVE-2026-33721](https://patchblox.com/security/data/fix/linux/debian-cve-2026-33721.md) | Mar 27, 2026 | Debian 14 8.6.1-1 | High | 1 | 0 |
| [DEBIAN-CVE-2026-33721](https://patchblox.com/security/data/fix/linux/debian-cve-2026-33721.md) | Mar 27, 2026 | Debian 12.15 (bookworm) 8.0.0-3+deb12u1 | High | 1 | 0 |
| [DEBIAN-CVE-2026-33721](https://patchblox.com/security/data/fix/linux/debian-cve-2026-33721.md) | Mar 27, 2026 | Debian 13.5 (trixie) 8.4.0-4+deb13u2 | High | 1 | 0 |
| [DLA-4506-1](https://patchblox.com/security/data/fix/linux/dla-4506-1.md) | Mar 23, 2026 | Debian 11.6 (bullseye) 7.6.2-1+deb11u1 | Routine | 1 | 0 |
| [DEBIAN-CVE-2025-59431](https://patchblox.com/security/data/fix/linux/debian-cve-2025-59431.md) | Sep 19, 2025 | Debian 13.5 (trixie) 8.4.0-4+deb13u1 | Urgent | 1 | 0 |
| [DEBIAN-CVE-2025-59431](https://patchblox.com/security/data/fix/linux/debian-cve-2025-59431.md) | Sep 19, 2025 | Debian 14 8.4.1-1 | Urgent | 1 | 0 |
| [DEBIAN-CVE-2025-59431](https://patchblox.com/security/data/fix/linux/debian-cve-2025-59431.md) | Sep 19, 2025 | Debian 12.15 (bookworm) 8.0.0-3+deb12u1 | Urgent | 1 | 0 |

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Data as of 2026-11-07T00:32:44Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo