CVE-2026-90557
Medium
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.
SeverityMedium
CVSS6.1
Exploit probability—
ProductFreeciv
PublishedSep 12, 2026
First seenSep 12, 2026
Weakness typeCWE-125Out-of-bounds read
How to fix
Update
- freeciv freeciv3.2.6 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| freeciv freeciv | 3.1.0 ≤ v < 3.2.6 | 3.2.6 |
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