CVE-2026-90557
mediumFreeciv 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 acti…
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.
CVSS
6.1
6.1 (CVSS v3.1)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H Severity source: NVD CVSS v3.1 (disclosure@vulncheck.com)
Timeline (UTC)
Published: 2026-09-12 18:16
Modified: 2026-09-23 17:17
NVD status: Deferred
Last synced 2 days ago
Verified against the source API 2026-10-27 06:52 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/freeciv/freeciv disclosure@vulncheck.com
- https://github.com/freeciv/freeciv/blob/R3_2_5/server/savegame/savegame2.c#L4282 disclosure@vulncheck.com
- https://github.com/freeciv/freeciv/blob/R3_2_5/server/savegame/savegame3.c#L6108 disclosure@vulncheck.com
- https://github.com/freeciv/freeciv/commit/ef0c76c2765fe383140eb1a70dbea1228844152e disclosure@vulncheck.com
- https://github.com/freeciv/freeciv/releases/tag/R3_2_6 disclosure@vulncheck.com
- https://redmine.freeciv.org/issues/2162 disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/freeciv-3.1.0-through-3.2.5-out-of-bounds-read-via-sa... disclosure@vulncheck.com
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 06:52 UTC · record ↗