CVE-2026-90557Freeciv 3.1.0 through 3.2.5 Out-of-Bounds Read via Savegame
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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 MEDIUM (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
- Weakness (CWE)
- CWE-125
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- Sep 15, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
freeciv freeciv freeciv:freeciv (from the name) | from 3.1.0 before 3.2.6 | CNA record |
References
- https://github.com/freeciv/freeciv/commit/ef0c76c2765fe383140eb1a70dbea1228844152epatch
- 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
- https://github.com/freeciv/freeciv/releases/tag/R3_2_6release-notes
- https://github.com/freeciv/freeciv/blob/R3_2_5/server/savegame/savegame2.c#L4282technical-description
- https://www.vulncheck.com/advisories/freeciv-3.1.0-through-3.2.5-out-of-bounds-read-via-savegamethird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.