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CVE-2022-50163

21
FAUCET Score

CVE-2022-50163 is a high-severity vulnerability in the Linux kernel's AX.25 networking protocol implementation. It stems from incorrect usage of the dev_tracker mechanism, leading to a "reference already released" error. This flaw could allow a local attacker with low privileges to cause a denial of service (system crash) due to memory corruption. There is no public exploit code available, nor is there evidence of active exploitation or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.14.277, < 4.15CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.19.240, < 4.20CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.4.190, < 5.5CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.10.112, < 5.11CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.15.35, < 5.16CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.21%
Probability of exploitation in next 30 days
EPSS Percentile
11.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0021 is in the 40th percentile among its peer group of 17,070 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (2)

redhatCVE-2022-50163

kernel: ax25: fix incorrect dev_tracker usage

Jun 18, 2025
microsoft2025-Jun/CVE-2022-50163Important

ax25: fix incorrect dev_tracker usage

Jun 10, 2025

References

git.kernel.org / stable/c/4294df1374450912b2f64ee3cf575069fc784679
Patch
git.kernel.org / stable/c/d08e3d71e5942f77fbff7f3529ed7fc82fbb3dfa
Patch
git.kernel.org / stable/c/d7c4c9e075f8cc6d88d277bc24e5d99297f03c06
Patch