Public mode

No access to your tenant or devices. Every item links to its source. What this means

CVE-2026-90556

Freeciv before 3.2.6 Heap Buffer Overflow via worklist_load

CVSS 4.0 8.5 HIGHCVSS 3.1 7.8 HIGHCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-90556

Published

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.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-90556

Published

freeciv

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "freeciv",
                    "product": "freeciv",
                    "repo": "https://github.com/freeciv/freeciv",
                    "defaultStatus": "unaffected",
                    "versions": [
                        {
                            "version": "0",
                            "lessThan": "3.2.6",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON