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CVE-2022-49549

17
FAUCET Score

CVE-2022-49549 is a memory leak vulnerability in the Linux kernel's x86/MCE/AMD component, specifically occurring when the threshold_create_bank() function fails during device creation. This flaw affects Linux kernel versions and results in a leak of previously allocated threshold banks. Rated with a CVSS score of 5.5 (Medium), the vulnerability has a local attack vector and low attack complexity, potentially leading to a high impact on availability (denial of service) but no impact on confidentiality or integrity. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE. It is not listed on the CISA KEV catalog.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.8, < 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:*:*:*:*:*:*:*:*
>= 5.18, < 5.18.3CPE 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
0.26%
Probability of exploitation in next 30 days
EPSS Percentile
18.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0026 is in the 73rd 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-0:5.14.0-503.11.1.el9_5
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-rt

Vendor Advisories (1)

redhatCVE-2022-49549Low

kernel: x86/MCE/AMD: Fix memory leak when threshold_create_bank() fails

Feb 26, 2025

References

git.kernel.org / stable/c/396b8e7ab2a99ddac57d3522b3da5e58cb608d37
Patch
git.kernel.org / stable/c/9708f1956eeb70c86943e0bc62fa3b0101b59616
Patch
git.kernel.org / stable/c/b4acb8e7f1594607bc9017ef0aacb40b24a003d6
Patch
git.kernel.org / stable/c/cc0dd4456f9573bf8af9b4d8754433918e809e1e
Patch
git.kernel.org / stable/c/e5f28623ceb103e13fc3d7bd45edf9818b227fd0
Patch