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CVE-2024-40966

17
FAUCET Score

CVE-2024-40966 addresses a bug in the Linux kernel where attaching certain line disciplines (like N_GSM) to virtual consoles could lead to a system crash due to a sleeping function being called from an invalid context. This vulnerability specifically impacts the Linux kernel. With a CVSS score of 5.5 (Medium), it can be exploited locally with low attack complexity and user privileges, potentially causing a denial of service. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 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:*:*:*:*:*:*:*:*

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
0.29%
Probability of exploitation in next 30 days
EPSS Percentile
21.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0029 is in the 77th 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 (4)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-0:5.14.0-503.11.1.el9_5
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-rt
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-rt

Vendor Advisories (2)

redhatCVE-2024-40966Moderate

kernel: tty: add the option to have a tty reject a new ldisc

Jul 12, 2024
microsoft2024-Jul/CVE-2024-40966Moderate

tty: add the option to have a tty reject a new ldisc

Jul 9, 2024

References

git.kernel.org / stable/c/287b569a5b914903ba7c438a3c0dbc3410ebb409
Patch
git.kernel.org / stable/c/3c6332f3bb1578b5b10ac2561247b1d6272ae937
Patch
git.kernel.org / stable/c/5920ac19964f9e20181f63b410d9200ddbf8dc86
Patch
git.kernel.org / stable/c/6bd23e0c2bb6c65d4f5754d1456bc9a4427fc59b
Patch
lists.debian.org / debian-lts-announce/2025/01/msg00001.html