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CVE-2022-50255

23
FAUCET Score

CVE-2022-50255 is a high-severity vulnerability affecting the Linux kernel's tracing subsystem, specifically related to synthetic events. It allows a local attacker to cause a denial-of-service (system crash) by crafting specific tracing commands that lead to an invalid memory access when reading strings from user-space addresses. The vulnerability has a CVSS score of 7.1 (HIGH), indicating a low attack complexity and requiring local privileges, with a high impact on availability. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.10, < 5.15.75CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.16, < 5.19.17CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 6.0, < 6.0.3CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.1HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.15%
Probability of exploitation in next 30 days
EPSS Percentile
4.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0015 is in the 20th 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 Patches (2)

redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-rt

Vendor Advisories (1)

redhatCVE-2022-50255Moderate

kernel: tracing: Fix reading strings from synthetic events

Sep 15, 2025

References

git.kernel.org / stable/c/0934ae9977c27133449b6dd8c6213970e7eece38
Patch
git.kernel.org / stable/c/149198d0b884e4606ed1d29b330c70016d878276
Patch
git.kernel.org / stable/c/d9c79fbcbdb6cb10c07c85040eaf615180b26c48
Patch
git.kernel.org / stable/c/f8bae1853196b52ede50950387f5b48cf83b9815
Patch