CVE-2026-90557
Freeciv 3.1.0 through 3.2.5 Out-of-Bounds Read via Savegame
- State
- Published
- Severity
- 6.9 Medium
- Published
- Sep 12, 2026
- Updated
- Sep 15, 2026
- Reserved
- Sep 12, 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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.9 Medium | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 6.1 Medium | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H | VulnCheck |
Weaknesses
- CWE-125 Out-of-bounds Read
Affected Products
| Product | Versions |
|---|---|
freecivfreeciv |
|
References
- Patch Commitpatch
- https://github.com/freeciv/freecivproduct
- https://redmine.freeciv.org/issues/2162issue-tracking
- https://github.com/freeciv/freeciv/blob/R3_2_5/server/savegame/savegame3.c#L6108technical-description
- freeciv R3_2_6 Release Notesrelease-notes
- https://github.com/freeciv/freeciv/blob/R3_2_5/server/savegame/savegame2.c#L4282technical-description
- VulnCheck Advisory: Freeciv 3.1.0 through 3.2.5 Out-of-Bounds Read via Savegamethird-party-advisory
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