Bug 2532607 (CVE-2026-90557)

Summary: CVE-2026-90557 freeciv: Freeciv: Out-of-bounds read vulnerability in savegame processing
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Freeciv. A remote attacker could exploit an out-of-bounds read vulnerability by crafting a malicious savegame file. This file, when loaded, could bypass internal checks, leading to a denial of service (crash) or the disclosure of limited memory contents.
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Bug Depends On: 2532937    
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Description OSIDB Bzimport 2026-09-12 18:11:32 UTC 
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.