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CVE-2026-90557

Freeciv 3.1.0 through 3.2.5 Out-of-Bounds Read via Savegame

CVSS 4.0 6.9 MEDIUMCVSS 3.1 6.1 MEDIUMCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-90557

Published

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.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-90557

Published

freeciv

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "freeciv",
                    "product": "freeciv",
                    "repo": "https://github.com/freeciv/freeciv",
                    "defaultStatus": "unaffected",
                    "versions": [
                        {
                            "version": "3.1.0",
                            "lessThan": "3.2.6",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON