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CVE-2022-49451

17
FAUCET Score

CVE-2022-49451 is a vulnerability in the Linux kernel's ARM SCMI firmware component, specifically affecting the enumeration of protocols. The flaw stems from an improper validation check during BASE_DISCOVER_LIST_PROTOCOLS, where an unsigned integer overflow could silently bypass the check. This vulnerability is rated Medium (CVSS 5.5) with a local attack vector and low complexity, potentially leading to a denial of service. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.17, < 4.19.247CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.20, < 5.4.198CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.5, < 5.10.121CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.11, < 5.15.46CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.16, < 5.17.14CPE 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
0.27%
Probability of exploitation in next 30 days
EPSS Percentile
19.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0027 is in the 75th 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 (2)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-0:5.14.0-162.6.1.el9_1
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

Vendor Advisories (1)

redhatCVE-2022-49451Moderate

kernel: firmware: arm_scmi: Fix list protocols enumeration in the base protocol

Feb 26, 2025

References

git.kernel.org / stable/c/1052f22e127d0c34c3387bb389424ba1c61491ff
Patch
git.kernel.org / stable/c/2ccfcd7a09c826516edcfe464b05071961aada3f
Patch
git.kernel.org / stable/c/444a2d27fe9867d0da4b28fc45b793f32e099ab8
Patch
git.kernel.org / stable/c/6e7978695f4a6cbd83616b5a702b77fa2087b247
Patch
git.kernel.org / stable/c/8009120e0354a67068e920eb10dce532391361d0
Patch
git.kernel.org / stable/c/98342148a8cd242855d7e257f298c966c96dba9f
Patch
git.kernel.org / stable/c/b0e4bafac8963c2d85ee18d3d01f393735acceec
Patch