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vuln-cve/data/2026/123xxx/CVE-2026-123785.json
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{
"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"
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},
"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."
}
],
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"description": "Loop with Unreachable Exit Condition ('Infinite Loop')",
"cweId": "CWE-835",
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"product": "fluxbox",
"defaultStatus": "unaffected",
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"version": "0",
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"status": "affected",
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"attackVector": "LOCAL",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"privilegesRequired": "NONE",
"userInteraction": "PASSIVE",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE",
"vulnAvailabilityImpact": "HIGH",
"subConfidentialityImpact": "NONE",
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"baseScore": 6.8,
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"scope": "UNCHANGED",
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"references": [
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"url": "https://github.com/fluxbox/fluxbox/pull/90",
"tags": [
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"name": "Pull Request #90"
},
{
"url": "https://github.com/fluxbox/fluxbox",
"tags": [
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},
{
"url": "https://github.com/fluxbox/fluxbox/blob/Release-1_3_7/src/FbTk/Menu.cc#L433-L448",
"name": "Menu::updateMenu column loop",
"tags": [
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},
{
"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"
}
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"credits": [
{
"lang": "en",
"value": "Igor Marcel",
"type": "finder"
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"content": {
"timestamp": "2026-11-06T16:46:13.010145Z",
"id": "CVE-2026-123785",
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{
"Exploitation": "none"
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"Automatable": "no"
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}