CVE-2026-90557

{"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": "2026-09-15T17:08:59.234Z"}, "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"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-09-15T17:08:35.732761Z", "id": "CVE-2026-90557", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-15T17:08:59.234Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-90557", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-09-15T17:08:35.732761Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-15T17:08:53.852Z"}}], "cna": {"title": "Freeciv 3.1.0 through 3.2.5 Out-of-Bounds Read via Savegame", "credits": [{"lang": "en", "type": "finder", "value": "Tristan Madani"}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "baseScore": 6.9, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "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", "userInteraction": "PASSIVE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "LOW"}}, {"format": "CVSS", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.1, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}}], "affected": [{"repo": "https://github.com/freeciv/freeciv", "vendor": "freeciv", "product": "freeciv", "versions": [{"status": "affected", "version": "3.1.0", "lessThan": "3.2.6", "versionType": "semver"}], "defaultStatus": "unaffected"}], "datePublic": "2026-08-23T00:00:00.000Z", "references": [{"url": "https://github.com/freeciv/freeciv/commit/ef0c76c2765fe383140eb1a70dbea1228844152e", "name": "Patch Commit", "tags": ["patch"]}, {"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", "name": "freeciv R3_2_6 Release Notes", "tags": ["release-notes"]}, {"url": "https://github.com/freeciv/freeciv/blob/R3_2_5/server/savegame/savegame2.c#L4282", "tags": ["technical-description"]}, {"url": "https://www.vulncheck.com/advisories/freeciv-3.1.0-through-3.2.5-out-of-bounds-read-via-savegame", "name": "VulnCheck Advisory: Freeciv 3.1.0 through 3.2.5 Out-of-Bounds Read via Savegame", "tags": ["third-party-advisory"]}], "x_generator": {"engine": "vulncheck-endgame"}, "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", "type": "CWE", "cweId": "CWE-125", "description": "Out-of-bounds Read"}]}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:freeciv:freeciv:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "3.2.6", "versionStartIncluding": "3.1.0"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-09-12T18:06:41.706Z"}}}, "cveMetadata": {"cveId": "CVE-2026-90557", "state": "PUBLISHED", "dateUpdated": "2026-09-15T17:08:59.234Z", "dateReserved": "2026-09-12T11:13:43.326Z", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "datePublished": "2026-09-12T18:06:41.706Z", "assignerShortName": "VulnCheck"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "freeciv", "repo": "https://github.com/freeciv/freeciv", "vendor": "freeciv", "versions": [{"lessThan": "3.2.6", "status": "affected", "version": "3.1.0", "versionType": "semver"}]}], "source": "disclosure@vulncheck.com"}], "cveTags": [], "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."}], "id": "CVE-2026-90557", "lastModified": "2026-09-23T17:17:47.410", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 4.2, "source": "disclosure@vulncheck.com", "type": "Secondary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "LOCAL", "availabilityRequirement": "NOT_DEFINED", "baseScore": 6.9, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "PASSIVE", "valueDensity": "NOT_DEFINED", "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/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", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "disclosure@vulncheck.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-90557", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-09-15T17:08:35.732761Z", "version": "2.0.3"}}]}, "published": "2026-09-12T18:16:44.343", "references": [{"source": "disclosure@vulncheck.com", "url": "https://github.com/freeciv/freeciv"}, {"source": "disclosure@vulncheck.com", "url": "https://github.com/freeciv/freeciv/blob/R3_2_5/server/savegame/savegame2.c#L4282"}, {"source": "disclosure@vulncheck.com", "url": "https://github.com/freeciv/freeciv/blob/R3_2_5/server/savegame/savegame3.c#L6108"}, {"source": "disclosure@vulncheck.com", "url": "https://github.com/freeciv/freeciv/commit/ef0c76c2765fe383140eb1a70dbea1228844152e"}, {"source": "disclosure@vulncheck.com", "url": "https://github.com/freeciv/freeciv/releases/tag/R3_2_6"}, {"source": "disclosure@vulncheck.com", "url": "https://redmine.freeciv.org/issues/2162"}, {"source": "disclosure@vulncheck.com", "url": "https://www.vulncheck.com/advisories/freeciv-3.1.0-through-3.2.5-out-of-bounds-read-via-savegame"}], "sourceIdentifier": "disclosure@vulncheck.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-125"}], "source": "disclosure@vulncheck.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[3.1.0,3.2.6)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "freeciv", "source": "cna", "vendor": "freeciv"}, "product": "freeciv", "vendor": "freeciv"}], "created": "2026-09-13T00:15:03.351464+00:00", "updated": "2026-09-15T18:30:14.466278+00:00", "vendors": ["freeciv", "freeciv$PRODUCT$freeciv"]}