{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-123785", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-11-06T14:37:46.448Z", "datePublished": "2026-11-06T15:01:01.397Z", "dateUpdated": "2026-11-06T16:46:17.952Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-11-06T15:01:01.397Z"}, "datePublic": "2026-11-01T00:00:00.000Z", "title": "Fluxbox through 1.3.7 Infinite Loop via Menu::updateMenu() Style Geometry", "descriptions": [{"lang": "en", "value": "Fluxbox through 1.3.7 contains an infinite loop vulnerability in Menu::updateMenu() in src/FbTk/Menu.cc that allows attackers to hang the window manager via crafted style geometry values. Attackers can supply a style with an oversized unbounded menu.titleHeight so the column loop never terminates, causing sustained CPU use and denial of service at startup."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Loop with Unreachable Exit Condition ('Infinite Loop')", "cweId": "CWE-835", "type": "CWE"}]}], "affected": [{"vendor": "fluxbox", "product": "fluxbox", "defaultStatus": "unaffected", "versions": [{"version": "0", "lessThanOrEqual": "1.3.7", "status": "affected", "versionType": "custom"}], "packageURL": "pkg:github/fluxbox/fluxbox"}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N", "attackVector": "LOCAL", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 6.8, "baseSeverity": "MEDIUM"}}, {"format": "CVSS", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM"}}], "references": [{"url": "https://github.com/fluxbox/fluxbox/pull/90", "tags": ["issue-tracking", "patch"], "name": "Pull Request #90"}, {"url": "https://github.com/fluxbox/fluxbox", "tags": ["product"]}, {"url": "https://github.com/fluxbox/fluxbox/blob/Release-1_3_7/src/FbTk/Menu.cc#L433-L448", "name": "Menu::updateMenu column loop", "tags": ["technical-description"]}, {"name": "VulnCheck Advisory: Fluxbox through 1.3.7 Infinite Loop via Menu::updateMenu() Style Geometry", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/fluxbox-through-1.3.7-infinite-loop-via-menu-updatemenu-style-geometry"}], "credits": [{"lang": "en", "value": "Igor Marcel", "type": "finder"}], "x_generator": {"engine": "vulncheck-endgame"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-11-06T16:46:13.010145Z", "id": "CVE-2026-123785", "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": "2026-11-06T16:46:17.952Z"}}]}}

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{}

{"created": "2026-11-06T16:45:05.629217+00:00", "updated": "2026-11-06T16:45:05.629223+00:00", "vendors": []}