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CVE-2024-40967

17
FAUCET Score

CVE-2024-40967 is a medium-severity vulnerability in the Linux kernel's serial driver for i.MX processors, specifically affecting the 'linux' and 'linux_kernel' products. It addresses a potential deadlock by introducing a 1-second timeout when waiting for the transmitter to empty, preventing system unresponsiveness. The vulnerability has a CVSS score of 5.5 (MEDIUM), indicating a local attack vector with low complexity, requiring low privileges, and leading to high availability impact (denial of service). There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 5.15.162CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.16, < 6.1.96CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 6.2, < 6.6.36CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 6.7, < 6.9.7CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 3.2.30, < 3.3CPE match
cpe:2.3:a: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
0.22%
Probability of exploitation in next 30 days
EPSS Percentile
12.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0022 is in the 57th 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-0:5.14.0-503.11.1.el9_5
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-rt

Vendor Advisories (1)

redhatCVE-2024-40967Moderate

kernel: serial: imx: Introduce timeout when waiting on transmitter empty

Jul 12, 2024

References

git.kernel.org / stable/c/53b2c95547427c358f45515a9f144efee95e3701
Patch
git.kernel.org / stable/c/7f2b9ab6d0b26f16cd38dd9fd91d51899635f7c7
Patch
git.kernel.org / stable/c/7f9e70c68b7ace0141fe3bc94bf7b61296b71916
Patch
git.kernel.org / stable/c/982ae3376c4c91590d38dc8a676c10f7df048a44
Patch
git.kernel.org / stable/c/e533e4c62e9993e62e947ae9bbec34e4c7ae81c2
Patch
lists.debian.org / debian-lts-announce/2025/01/msg00001.html