Freeciv versions before 3.2.6 contain a heap buffer overflow in worklist_load() when processing savegame files with declared worklist lengths exceeding the fixed array bound of 64 elements. Attackers can craft malicious savegame files that write past the entries array into adjacent heap-allocated struct fields, potentially corrupting memory when a user or server operator loads the file.
Advisories

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Fixes

Solution

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Workaround

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History

Fri, 18 Sep 2026 21:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Sat, 12 Sep 2026 18:15:00 +0000

Type Values Removed Values Added
Description Freeciv versions before 3.2.6 contain a heap buffer overflow in worklist_load() when processing savegame files with declared worklist lengths exceeding the fixed array bound of 64 elements. Attackers can craft malicious savegame files that write past the entries array into adjacent heap-allocated struct fields, potentially corrupting memory when a user or server operator loads the file.
Title Freeciv before 3.2.6 Heap Buffer Overflow via worklist_load
First Time appeared Freeciv
Freeciv freeciv
Weaknesses CWE-122
CPEs cpe:2.3:a:freeciv:freeciv:*:*:*:*:*:*:*:*
Vendors & Products Freeciv
Freeciv freeciv
References
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.5, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-09-18T17:23:06.892Z

Reserved: 2026-09-12T11:13:43.326Z

Link: CVE-2026-90556

cve-icon Vulnrichment

Updated: 2026-09-18T17:17:14.837Z

cve-icon NVD

Status : Received

Published: 2026-09-12T18:16:44.193

Modified: 2026-09-18T18:18:00.080

Link: CVE-2026-90556

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-15T18:00:17Z

Weaknesses