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CVE-2022-49566

17
FAUCET Score

CVE-2022-49566 is a memory leak vulnerability in the Linux kernel's QAT crypto driver, specifically affecting RSA key handling. When an RSA key in PKCS #1 V2.1 form 2 is used, components of the private key persist after the TFM is released, leading to a memory leak. This vulnerability has a CVSS score of 5.5 (Medium), indicating a local attack vector with low complexity, requiring low privileges, and resulting in high availability impact. There is currently no evidence of active exploitation, public exploit code, or significant community discussion or media coverage regarding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.8, < 5.15.58CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.16, < 5.18.15CPE 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
17.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0026 is in the 72nd 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

Vendor Advisories (1)

redhatCVE-2022-49566Moderate

kernel: crypto: qat - fix memory leak in RSA

Feb 26, 2025

References

git.kernel.org / stable/c/0f967fdc09955221a1951a279481b0bf4d359941
Patch
git.kernel.org / stable/c/80a52e1ee7757b742f96bfb0d58f0c14eb6583d0
Patch
git.kernel.org / stable/c/a843925e0287eebb4aa808666bf22c664dfe4c53
Patch