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CVE-2026-90556 – Freeciv before 3.2.6 Heap Buffer Overflow via worklist_load

Posted on September 13, 2026
CVE ID :CVE-2026-90556

Published : Sept. 12, 2026, 6:16 p.m. | 4 hours, 51 minutes ago

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.

Severity: 8.5 | HIGH

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