{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-90557", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-09-12T11:13:43.326Z", "datePublished": "2026-09-12T18:06:41.706Z", "dateUpdated": "2026-09-12T18:06:41.706Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-09-12T18:06:41.706Z"}, "datePublic": "2026-08-23T00:00:00.000Z", "title": "Freeciv 3.1.0 through 3.2.5 Out-of-Bounds Read via Savegame", "descriptions": [{"lang": "en", "value": "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."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Out-of-bounds Read", "cweId": "CWE-125", "type": "CWE"}]}], "affected": [{"vendor": "freeciv", "product": "freeciv", "repo": "https://github.com/freeciv/freeciv", "defaultStatus": "unaffected", "versions": [{"version": "3.1.0", "lessThan": "3.2.6", "status": "affected", "versionType": "semver"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:freeciv:freeciv:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.1.0", "versionEndExcluding": "3.2.6"}]}]}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "vectorString": "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", "attackVector": "LOCAL", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 6.9, "baseSeverity": "MEDIUM"}}, {"format": "CVSS", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "baseScore": 6.1, "baseSeverity": "MEDIUM"}}], "references": [{"url": "https://github.com/freeciv/freeciv/commit/ef0c76c2765fe383140eb1a70dbea1228844152e", "tags": ["patch"], "name": "Patch Commit"}, {"url": "https://github.com/freeciv/freeciv", "tags": ["product"]}, {"url": "https://redmine.freeciv.org/issues/2162", "tags": ["issue-tracking"]}, {"url": "https://github.com/freeciv/freeciv/blob/R3_2_5/server/savegame/savegame3.c#L6108", "tags": ["technical-description"]}, {"url": "https://github.com/freeciv/freeciv/releases/tag/R3_2_6", "tags": ["release-notes"], "name": "freeciv R3_2_6 Release Notes"}, {"url": "https://github.com/freeciv/freeciv/blob/R3_2_5/server/savegame/savegame2.c#L4282", "tags": ["technical-description"]}, {"name": "VulnCheck Advisory: Freeciv 3.1.0 through 3.2.5 Out-of-Bounds Read via Savegame", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/freeciv-3.1.0-through-3.2.5-out-of-bounds-read-via-savegame"}], "credits": [{"lang": "en", "value": "Tristan Madani", "type": "finder"}], "x_generator": {"engine": "vulncheck-endgame"}}}}

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