{"id":"DEBIAN-CVE-2026-90557","details":"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.","modified":"2026-09-24T08:47:26.082243675Z","published":"2026-09-12T18:16:44.343Z","upstream":["CVE-2026-90557"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-90557"}],"affected":[{"package":{"name":"freeciv","ecosystem":"Debian:12","purl":"pkg:deb/debian/freeciv?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.0.6-1","3.0.6-1+deb12u1","3.0.8-1","3.0.8-2","3.1.0+ds-1","3.1.1+ds-1","3.1.2+ds-1","3.1.2+ds-2","3.1.2+ds-2~exp1","3.1.4+ds-1","3.1.4+ds-2","3.2.0+ds-1","3.2.1+ds-1","3.2.1+ds-2","3.2.2+ds-1","3.2.4+ds-1","3.2.5+ds-1","3.2.6+ds-1"],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-90557.json"}},{"package":{"name":"freeciv","ecosystem":"Debian:13","purl":"pkg:deb/debian/freeciv?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.1.4+ds-2","3.1.4+ds-2+deb13u1","3.2.0+ds-1","3.2.1+ds-1","3.2.1+ds-2","3.2.2+ds-1","3.2.4+ds-1","3.2.5+ds-1","3.2.6+ds-1"],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-90557.json"}},{"package":{"name":"freeciv","ecosystem":"Debian:14","purl":"pkg:deb/debian/freeciv?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.2.6+ds-1"}]}],"versions":["3.1.4+ds-2","3.2.0+ds-1","3.2.1+ds-1","3.2.1+ds-2","3.2.2+ds-1","3.2.4+ds-1","3.2.5+ds-1"],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-90557.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"}]}