CVE-2022-47939

CVE Enrichment

CVSS: 9.8 CRITICAL
EPSS: 47.38%
EPSS Percentile: 98.83%
CISA KEV: Not listed

Description

An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.19 before 5.19.2. fs/ksmbd/smb2pdu.c has a use-after-free and OOPS for SMB2_TREE_DISCONNECT.

Technical Details

CVSS Version: 3.1
CNA / NVD Source: [email protected]
Published: 23-Dec-2022 23:15
Last Modified: 17-Jun-2026 12:14
EPSS Date: 2026-10-18
CWE: CWE-416

CVSS Vector


            CVSS:3.1                            AV:N /
                            AC:L /
                            PR:N /
                            UI:N /
                            S:U /
                            C:H /
                            I:H /
                            A:H

Affected Products / Versions

linux / linux_kernel
Version / affected range: * · from (inclusive) 5.15 · before (exclusive) 5.15.61
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux / linux_kernel
Version / affected range: * · from (inclusive) 5.16 · before (exclusive) 5.18.18
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux / linux_kernel
Version / affected range: * · from (inclusive) 5.19 · before (exclusive) 5.19.2
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

References

Last enrichment sync: 25-Oct-2026 18:22
Sources: NVD · FIRST EPSS · CISA KEV
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Reported Context (1)

A critical remote code execution vulnerability (CVE-2022-47939) has been identified in the ksmbd module of the Linux kernel. This means that remote attackers could potentially execute arbitrary code on affected systems Critical Linux ksmbd Vulnerability Could Allow Unauthenticated Remote Code Execution

Vendors (3)

Products (2)

Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.