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CVE-2022-49794

17
FAUCET Score

CVE-2022-49794 is a memory leak vulnerability in the Linux kernel's at91_adc driver, specifically within the at91_adc_allocate_trigger() function. This medium-severity flaw (CVSS 5.5) could lead to a denial of service (A:H) due to resource exhaustion, requiring local access (AV:L, PR:L) with low attack complexity (AC:L). There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 3.5, < 4.9.334CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.10, < 4.14.300CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.15, < 4.19.267CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.20, < 5.4.225CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.5, < 5.10.156CPE 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
0.18%
Probability of exploitation in next 30 days
EPSS Percentile
7.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0018 is in the 40th 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-2022-49794

kernel: iio: adc: at91_adc: fix possible memory leak in at91_adc_allocate_trigger()

May 1, 2025

References

git.kernel.org / stable/c/1bf8c0aff8fb5c4edf3ba6728e6bedbd610d7f4b
Patch
git.kernel.org / stable/c/2b29a7f2d52fb5281b30cf61c947d88bab18a29b
Patch
git.kernel.org / stable/c/65f20301607d07ee279b0804d11a05a62a6c1a1c
Patch
git.kernel.org / stable/c/7b75515728b628a9a7540f201efdeb8ca7299385
Patch
git.kernel.org / stable/c/85d2a8b287a89853c0dcfc5a97b5e9d36376fe37
Patch
git.kernel.org / stable/c/a0d98ae5a62a7bbad8fcf9fa22e0a1274197bbc4
Patch
git.kernel.org / stable/c/c27a3b6ba23350708cf5ab9962337447b51eb76d
Patch
git.kernel.org / stable/c/c3ce73f60599a483dca7becd4112508833a40ef9
Patch