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CVE-2022-49936

17
FAUCET Score

CVE-2022-49936 describes a vulnerability in the Linux kernel's USB core, specifically affecting the handling of device resets. This flaw, discovered through kernel fuzzing, allows for nested device-reset calls, leading to a recursive locking violation and potential system instability. The vulnerability is rated Medium severity (CVSS 5.5), with a local attack vector and low attack complexity, potentially resulting in high availability impact (system crash) but no confidentiality or integrity impact. Currently, there is no evidence of active exploitation, nor are there publicly available exploit modules or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.9.328CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.10, < 4.14.293CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.15, < 4.19.258CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.20, < 5.4.213CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.5, < 5.10.142CPE 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
0.15%
Probability of exploitation in next 30 days
EPSS Percentile
5.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0015 is in the 31st 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 (6)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-0:4.18.0-477.10.1.el8_8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-0:5.14.0-284.11.1.el9_2
View patch
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-rt
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-2022-49936Low

kernel: USB: core: Prevent nested device-reset calls

Jun 18, 2025

References

git.kernel.org / stable/c/1b29498669914c7f9afb619722421418a753d372
Patch
git.kernel.org / stable/c/9c6d778800b921bde3bff3cff5003d1650f942d1
Patch
git.kernel.org / stable/c/abe3cfb7a7c8e907b312c7dbd7bf4d142b745aa8
Patch
git.kernel.org / stable/c/c548b99e1c37db6f7df86ecfe9a1f895d6c5966e
Patch
git.kernel.org / stable/c/cc9a12e12808af178c600cc485338bac2e37d2a8
Patch
git.kernel.org / stable/c/d5eb850b3e8836197a38475840725260b9783e94
Patch
git.kernel.org / stable/c/d90419b8b8322b6924f6da9da952647f2dadc21b
Patch
git.kernel.org / stable/c/df1875084898b15cbc42f712e93d7f113ae6271b
Patch