# CVE-2026-90557: freeciv: Freeciv versions 3.1.0 through 3.2.5 contain an out-of-bounds read vulnerability in sg_load_player_unit() when proces...

CVE-2026-90557 is fixed in 9 products on 1 platform, first by FEDORA-2026-75BDE5D061, released September 10, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-90557
- Priority: Routine
- CVSS: n/a (low)
- EPSS: 0.0018
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 10, 2026

## Description

Freeciv versions 3.1.0 through 3.2.5 contain an out-of-bounds read vulnerability in sg_load_player_unit() when processing savegame files with invalid unit activity indices. An attacker can craft a malicious savegame file with an out-of-range activity index that bypasses bounds checking and causes a crash or limited heap memory exposure when loaded.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | freeciv Debian 14 | 3.2.6+ds-1 | [DEBIAN-CVE-2026-90557](https://patchblox.com/security/data/fix/linux/debian-cve-2026-90557.md) | Sep 13, 2026 |
| Linux | freeciv Fedora 43 | 3.2.6-1.fc43 | [FEDORA-2026-75BDE5D061](https://patchblox.com/security/data/fix/linux/fedora-2026-75bde5d061.md) | Sep 10, 2026 |
| Linux | freeciv-common Fedora 43 | 3.2.6-1.fc43 | [FEDORA-2026-75BDE5D061](https://patchblox.com/security/data/fix/linux/fedora-2026-75bde5d061.md) | Sep 10, 2026 |
| Linux | freeciv-common-debuginfo Fedora 43 | 3.2.6-1.fc43 | [FEDORA-2026-75BDE5D061](https://patchblox.com/security/data/fix/linux/fedora-2026-75bde5d061.md) | Sep 10, 2026 |
| Linux | freeciv-debuginfo Fedora 43 | 3.2.6-1.fc43 | [FEDORA-2026-75BDE5D061](https://patchblox.com/security/data/fix/linux/fedora-2026-75bde5d061.md) | Sep 10, 2026 |
| Linux | freeciv-debugsource Fedora 43 | 3.2.6-1.fc43 | [FEDORA-2026-75BDE5D061](https://patchblox.com/security/data/fix/linux/fedora-2026-75bde5d061.md) | Sep 10, 2026 |
| Linux | freeciv-gtk Fedora 43 | 3.2.6-1.fc43 | [FEDORA-2026-75BDE5D061](https://patchblox.com/security/data/fix/linux/fedora-2026-75bde5d061.md) | Sep 10, 2026 |
| Linux | freeciv-gtk-debuginfo Fedora 43 | 3.2.6-1.fc43 | [FEDORA-2026-75BDE5D061](https://patchblox.com/security/data/fix/linux/fedora-2026-75bde5d061.md) | Sep 10, 2026 |
| Linux | freeciv-qt Fedora 43 | 3.2.6-1.fc43 | [FEDORA-2026-75BDE5D061](https://patchblox.com/security/data/fix/linux/fedora-2026-75bde5d061.md) | Sep 10, 2026 |
| Linux | freeciv-qt-debuginfo Fedora 43 | 3.2.6-1.fc43 | [FEDORA-2026-75BDE5D061](https://patchblox.com/security/data/fix/linux/fedora-2026-75bde5d061.md) | Sep 10, 2026 |

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Data as of 2026-11-08T19:12:23Z 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

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