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CVE-2022-49845

17
FAUCET Score

CVE-2022-49845 addresses a missing CAN header initialization in the Linux kernel's j1939 CAN bus driver, specifically within the j1939_send_one() function. This vulnerability affects Linux and the Linux kernel. With a CVSS score of 5.5 (Medium), it can lead to a denial of service (A:H) with local access (AV:L) and low privileges (PR:L), requiring no user interaction (UI:N). There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.4, < 5.4.225CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.5, < 5.10.155CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.11, < 5.15.79CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.16, < 6.0.9CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
6.1CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:*

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
0.19%
Probability of exploitation in next 30 days
EPSS Percentile
8.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0019 is in the 45th 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-0:5.14.0-611.5.1.el9_7
View patch
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-rt

Vendor Advisories (1)

redhatCVE-2022-49845Moderate

kernel: can: j1939: j1939_send_one(): fix missing CAN header initialization

May 1, 2025

References

git.kernel.org / stable/c/2719f82ad5d8199cf5f346ea8bb3998ad5323b72
Patch
git.kernel.org / stable/c/3eb3d283e8579a22b81dd2ac3987b77465b2a22f
Patch
git.kernel.org / stable/c/69e86c6268d59ceddd0abe9ae8f1f5296f316c3c
Patch
git.kernel.org / stable/c/d0513b095e1ef1469718564dec3fb3348556d0a8
Patch
git.kernel.org / stable/c/f8e0edeaa0f2b860bdbbf0aafb4492533043d650
Patch