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.
Metrics
CVSS 3.1 6.1/10
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| freeciv | freeciv | >= 3.1.0, < 3.2.6 |
References
- https://github.com/freeciv/freeciv
- https://github.com/freeciv/freeciv/blob/R3_2_5/server/savegame/savegame2.c#L4282
- https://github.com/freeciv/freeciv/blob/R3_2_5/server/savegame/savegame3.c#L6108
- https://github.com/freeciv/freeciv/commit/ef0c76c2765fe383140eb1a70dbea1228844152e
- https://github.com/freeciv/freeciv/releases/tag/R3_2_6
- https://redmine.freeciv.org/issues/2162
- https://www.vulncheck.com/advisories/freeciv-3.1.0-through-3.2.5-out-of-bounds-read-via-savegame
Timeline
- Published
- Sep 12, 2026
- Last modified
- Sep 23, 2026
- NVD status
- Deferred