🛡️ CVE-2022-47943 — linux-kernel

🟠 CVSS 8.1 — High ✅ No Known Exploit CWE-125 NVD
8.1
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.19 before 5.19.2. There is an out-of-bounds read and OOPS for SMB2_WRITE, when there is a large length in the zero DataOffset case.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity none, availability high.

Weakness class

CVE-2022-47943 is classified as CWE-125: Out-of-bounds Read. The code reads past the limits of a buffer, exposing adjacent memory contents or crashing the process.

Affected software

CVE-2022-47943 is recorded against 1 package.

  • linux-kernel (from 5.19 up to 5.19.2)

Timeline and source

Published on 23 December 2022 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

www.openwall.com
cdn.kernel.org
git.kernel.org
github.com
security.netapp.com
www.zerodayinitiative.com
www.openwall.com
cdn.kernel.org
git.kernel.org
github.com
security.netapp.com
www.zerodayinitiative.com

CVE-2022-47943 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity HIGH
CVSS Score 8.1
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
CWE CWE-125
Public Exploit ✅ No
Source NVD
Published 2022-12-23
Updated 2026-08-11
Modified 2026-06-17

Affected Packages

Software From version Fixed in
linux-kernel 5.19 5.19.2

References

Similar Threats

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