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CVE-2022-50032

15
FAUCET Score

CVE-2022-50032 is a refcount leak vulnerability in the Linux kernel's Renesas USB host controller driver, specifically within the usbhs_rza1_hardware_init() function. This medium-severity vulnerability (CVSS 5.5) could lead to a denial of service (A:H) through local access (AV:L) with low privileges (PR:L). There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.19.256CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.20, < 5.4.211CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.5, < 5.10.138CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.11, < 5.15.63CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.16, < 5.19.4CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

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
0.16%
Probability of exploitation in next 30 days
EPSS Percentile
5.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0016 is in the 34th percentile among its peer group of 15,940 CVEs.

Social Chatter

No social media mentions found for this CVE.

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 (2)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-0:5.14.0-284.11.1.el9_2
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-rt

Vendor Advisories (1)

redhatCVE-2022-50032Low

kernel: usb: renesas: Fix refcount leak bug

Jun 18, 2025

References

git.kernel.org / stable/c/36b18b777dece704b7c2e9e7947ca41a9b0fb009
Patch
git.kernel.org / stable/c/5c4b699193eba51f1bbf462d758d66f545fddd35
Patch
git.kernel.org / stable/c/9790a5a4f07f38a5add85ec58c44797d3a7c3677
Patch
git.kernel.org / stable/c/9d6d5303c39b8bc182475b22f45504106a07f086
Patch
git.kernel.org / stable/c/cfa8f707a58d68b2341a9dd0b33cf048f0628b4d
Patch
git.kernel.org / stable/c/fbdbd61a36d887e00114321c6758e359e9573a8e
Patch