CVE•Published 2026-04-06•Modified 2026-06-01•1 article on news•6 live references•NVD data
CVE-2026-31409Linux · Linux_kernel
Vulnerability data via NVD (ingested)
CVSS v3.1
8.8
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS percentile
8
Exploit Prediction Scoring System · top 92% of all CVEs
Description
In the Linux kernel, the following vulnerability has been resolved: ksmbd: unset conn->binding on failed binding request When a multichannel SMB2_SESSION_SETUP request with SMB2_SESSION_REQ_FLAG_BINDING fails ksmbd sets conn->binding = true but never clears it on the error path. This leaves the connection in a binding state where all subsequent ksmbd_session_lookup_all() calls fall back to the global sessions table. This fix it by clearing conn->binding = false in the error path.
Timeline
Published 2026-04-06
Modified 2026-06-01
External references
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vuln:CVE-2026-31409Hosts Shodan has explicitly fingerprinted as vulnerable.
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os:"Linux Kernel"Hosts Shodan identified as running Linux Kernel.
More intel sources (5)
Shodan report
vuln:CVE-2026-31409Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-31409Censys host search filtered to this CVE id.
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CVE-2026-31409Public source-code mentions — fast PoC discovery.
GitHub code
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Google dork
"CVE-2026-31409" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.