Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2023-53344

20
FAUCET Score

CVE-2023-53344 is an uninitialized value vulnerability in the Linux kernel's CAN BCM module, specifically within the bcm_tx_setup function. This flaw allows a local attacker to cause a denial of service (system crash) due to improper handling of errors from memcpy_from_msg, leading to the comparison of uninitialized memory. Rated 5.5 MEDIUM, the vulnerability has a low attack complexity and requires local privileges, but does not impact confidentiality or integrity. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.8, < 4.14.312CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.15, < 4.19.280CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.20, < 5.4.240CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.5, < 5.10.177CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.11, < 5.15.106CPE 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
8.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0019 is in the 43rd 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 Patches (4)

redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-rt
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-2023-53344Low

kernel: can: bcm: bcm_tx_setup(): fix KMSAN uninit-value in vfs_write

Sep 17, 2025

References

git.kernel.org / stable/c/2b4c99f7d9a57ecd644eda9b1fb0a1072414959f
Patch
git.kernel.org / stable/c/2e6ad51c709fa794e0ce26003c9c9cd944e3383a
Patch
git.kernel.org / stable/c/3fa0f1e0e31b1b73cdf59d4c36c7242e6ef821be
Patch
git.kernel.org / stable/c/618b15d09fed6126356101543451d49860db4388
Patch
git.kernel.org / stable/c/78bc7f0ab99458221224d3ab97199c0f8e6861f1
Patch
git.kernel.org / stable/c/ab2a55907823f0bca56b6d03ea05e4071ba8535f
Patch
git.kernel.org / stable/c/bf70e0eab64c625da84d9fdf4e84466b79418920
Patch
git.kernel.org / stable/c/c11dbc7705b3739974ac31a13f4ab81e61a5fb07
Patch