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CVE-2022-50372

20
FAUCET Score

Overview: CVE-2022-50372 is a memory leak vulnerability in the Linux kernel's CIFS (Common Internet File System) implementation. Specifically, it occurs when building an NTLMSSP negotiate blob fails during the mounting of a CIFS share. This affects systems running the Linux kernel. Severity: Rated as Medium (CVSS 5.5), this vulnerability has a local attack vector and low attack complexity, requiring local user privileges. The potential impact is a high availability impact due to the memory leak, but no confidentiality or integrity impact. Exploitation Status: There is no evidence of active exploitation, nor are there any known public exploit codes available in Metasploit, Nuclei, or ExploitDB. Community discussion and media coverage are minimal, indicating low public attention.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.16, < 6.0.6CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
6.1CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.17%
Probability of exploitation in next 30 days
EPSS Percentile
6.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0017 is in the 36th percentile among its peer group of 15,940 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-0:4.18.0-553.16.1.el8_10
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-0:5.14.0-362.8.1.el9_3
View patch
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-rt
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-rt

Vendor Advisories (1)

redhatCVE-2022-50372Low

kernel: cifs: Fix memory leak when build ntlmssp negotiate blob failed

Sep 17, 2025

References

git.kernel.org / stable/c/30b2d7f8f13664655480d6af45f60270b3eb6736
Patch
git.kernel.org / stable/c/fa5a70bdd5e565c8696fb04dfe18a4e8aff4695d
Patch