CVE-2026-90556 (GCVE-0-2026-90556)

Vulnerability from cvelistv5 – Published: 2026-09-12 18:06 – Updated: 2026-09-18 17:23
VLAI
Title
Freeciv before 3.2.6 Heap Buffer Overflow via worklist_load
Summary
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.
Severity
8.5 (High)
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
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-18 17:12 UTC
CWE
  • CWE-122 - Heap-based Buffer Overflow
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6432 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
freeciv freeciv Affected: 0 , < 3.2.6 (semver)
    cpe:2.3:a:freeciv:freeciv:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-08-23 00:00
Credits
Tristan Madani
Show details on NVD website
To clipboard 

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