{"id":"EM-20261106-VR7O","url":"https://cyber.eventmonitor.net/incident/EM-20261106-VR7O/fluxbox-vulnerability-cve-2026-123784/","type":"cve","title":"Fluxbox Vulnerability (CVE-2026-123784)","subtitle":"CVE-2026-123784","subject":"CVE-2026-123784","status":"Developing","severity":"high","affected":[],"headline":null,"born":"2026-11-06T15:17:21.297Z","firstSignal":"2026-11-06T15:01:00.000Z","lastSignal":"2026-11-06T15:17:21.297Z","updated":"2026-11-10T12:55:51.494Z","revision":1,"life":[{"status":"Born","at":"2026-11-06T15:17:21.297Z","why":"second independent source: C6 NVD CVE API 2.0"},{"status":"Developing","at":"2026-11-06T15:17:21.297Z","why":"signals keep joining"}],"changeLog":[{"at":"2026-11-06T15:01:00.000Z","what":"First signal: C41 Red Hat Security Data"},{"at":"2026-11-06T15:17:21.297Z","what":"Born: second source, C6 NVD CVE API 2.0. Page EM-20261106-VR7O created."}],"stages":[{"name":"Disclosed","at":"2026-11-06T15:17:21.297Z","detail":"C6 NVD published"},{"name":"Scored","at":"2026-11-06T15:17:21.297Z","detail":"CVSS 8.5 · EPSS 0.7%"},{"name":"Exploited","at":null,"detail":"No exploitation reported"},{"name":"Advisories","at":null,"detail":"None yet"},{"name":"Vendor Response","at":"2026-11-06T15:01:00.000Z","detail":"C41 published"},{"name":"Resolved","at":null,"detail":"After 14 quiet days"}],"signals":[{"at":"2026-11-06T15:01:00.000Z","source":"C41","sourceName":"Red Hat Security Data","role":"Vendor","severity":3,"title":"Red Hat: CVE-2026-123784 (important)","text":"fluxbox: fluxbox: Arbitrary command execution via crafted style background values","url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-123784.json"},{"at":"2026-11-06T15:17:21.297Z","source":"C6","sourceName":"NVD CVE API 2.0","role":"Database","severity":3,"title":"CVE-2026-123784 (CVSS 8.5)","text":"Fluxbox through 1.3.7 contains an OS command injection vulnerability in RootTheme::reconfigTheme() that allows attackers to execute commands via crafted style background values. Attackers can embed shell metacharacters in background pixmap paths, random directories, or gradient texture text, which are concatenated unescaped into an fbsetbg command run via $SHELL -c when the style loads.","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-123784"}],"crowd":[],"reference":{"nvd":{"published":"2026-11-06T15:17:21.297","score":8.5,"severity":"HIGH","desc":"Fluxbox through 1.3.7 contains an OS command injection vulnerability in RootTheme::reconfigTheme() that allows attackers to execute commands via crafted style background values. Attackers can embed shell metacharacters in background pixmap paths, random directories, or gradient texture text, which…","product":"","seen":1793988405511},"kev":null,"epss":{"epss":0.00708,"pct":0.53731,"at":1794315351494},"p0":false},"mergedInto":null,"publisher":"Event Monitor Cyber"}