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THREAT OPS › Threat News › [NVD] CVE-2026-53383 (HIGH 7.5) — In the Linux kernel, the following vulnerability has been resolved: ksmbd: reject non-VALID session in compound request branch smb2_check_user_session() takes a shortcut for any operation that is not the first in a COMPOUND request: it reuses work->sess (the session bound by th

[NVD] CVE-2026-53383 (HIGH 7.5) — In the Linux kernel, the following vulnerability has been resolved: ksmbd: reject non-VALID session in compound request branch smb2_check_user_session() takes a shortcut for any operation that is not the first in a COMPOUND request: it reuses work->sess (the session bound by th

mednvdPublished 2026-07-19

CVE-2026-53383 CVSS: 7.5 HIGH Published: 2026-07-19T12:16:49.117

In the Linux kernel, the following vulnerability has been resolved:

ksmbd: reject non-VALID session in compound request branch

smb2_check_user_session() takes a shortcut for any operation that is not the first in a COMPOUND request: it reuses work->sess (the session bound by the first operation) and validates only the SessionId, t

Indicators of compromise

CVE-2026-53383cve

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-53383