{"id":"EM-20261107-4L6B","url":"https://cyber.eventmonitor.net/incident/EM-20261107-4L6B/linux-kernel-vulnerability-cve-2026-99274/","type":"cve","title":"Linux Kernel Vulnerability (CVE-2026-99274)","subtitle":"CVE-2026-99274","subject":"CVE-2026-99274","status":"Developing","severity":"medium","affected":[],"headline":null,"born":"2026-11-07T15:30:28.000Z","firstSignal":"2026-11-07T14:08:45.000Z","lastSignal":"2026-11-07T15:30:28.000Z","updated":"2026-11-08T00:44:27.825Z","revision":1,"life":[{"status":"Born","at":"2026-11-07T15:30:28.000Z","why":"second independent source: C29 CIRCL Vulnerability-Lookup"},{"status":"Developing","at":"2026-11-07T15:30:28.000Z","why":"signals keep joining"}],"changeLog":[{"at":"2026-11-07T14:08:45.000Z","what":"First signal: C41 Red Hat Security Data"},{"at":"2026-11-07T15:30:28.000Z","what":"Born: second source, C29 CIRCL Vulnerability-Lookup. Page EM-20261107-4L6B created."}],"stages":[{"name":"Disclosed","at":"2026-11-07T14:17:02.730Z","detail":"C6 NVD published"},{"name":"Scored","at":null,"detail":"No CVSS yet"},{"name":"Exploited","at":null,"detail":"No exploitation reported"},{"name":"Advisories","at":null,"detail":"None yet"},{"name":"Vendor Response","at":"2026-11-07T14:08:45.000Z","detail":"C41 published"},{"name":"Resolved","at":null,"detail":"After 14 quiet days"}],"signals":[{"at":"2026-11-07T14:08:45.000Z","source":"C41","sourceName":"Red Hat Security Data","role":"Vendor","severity":2,"title":"Red Hat: CVE-2026-99274 (moderate)","text":"kernel: kernel: Denial of service via empty truncated responses in SMB client","url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-99274.json"},{"at":"2026-11-07T15:30:28.000Z","source":"C29","sourceName":"CIRCL Vulnerability-Lookup","role":"Database","severity":2,"title":"GHSA-f93r-28gq-5r6f / CVE-2026-99274","text":"In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix fiemap wild read on empty truncated response\n\nsmb3_fiemap() treats -E2BIG from SMB2_ioctl() as a truncated range blob\nand loops for the next chunk. If the server reports\nSTATUS_BUFFER_OVERFLOW with OutputCount ==…","url":"https://vulnerability.circl.lu/vuln/GHSA-f93r-28gq-5r6f"}],"crowd":[],"reference":{"nvd":{"published":"2026-11-07T14:17:02.730","score":null,"severity":"","desc":"In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix fiemap wild read on empty truncated response\n\nsmb3_fiemap() treats -E2BIG from SMB2_ioctl() as a truncated range blob\nand loops for the next chunk. If the server reports\nSTATUS_BUFFER_OVERFLOW with OutputCount ==…","product":"","seen":1794069191148},"kev":null,"epss":null,"p0":false},"mergedInto":null,"publisher":"Event Monitor Cyber"}