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CVE-2024-40929

19
FAUCET Score

CVE-2024-40929 is a high-severity out-of-bounds read vulnerability (CWE-125) affecting the Linux kernel's iwlwifi driver. Specifically, it occurs when the n_ssids value is zero but the ssids pointer is still valid, leading to an invalid memory access. This vulnerability has a CVSS score of 7.1, indicating a high potential impact on confidentiality and availability. The attack vector is local with low attack complexity and requires low privileges. Successful exploitation could lead to information disclosure or denial of service. Currently, there is no evidence of active exploitation, nor is there any public exploit code available in Metasploit, Nuclei, or ExploitDB. Community discussion and media coverage for this CVE are minimal, which is typical for a newly disclosed vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.17, < 5.10.221CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.11, < 5.15.162CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.16, < 6.1.95CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 6.2, < 6.6.35CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 6.7, < 6.9.6CPE 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
0.25%
Probability of exploitation in next 30 days
EPSS Percentile
16.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0025 is in the 51st 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

Patch Available

Vendor Patches (4)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-rt-0:4.18.0-553.22.1.rt7.363.el8_10
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-0:4.18.0-553.22.1.el8_10
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-0:5.14.0-427.33.1.el9_4
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-rt

Vendor Advisories (1)

redhatCVE-2024-40929Low

kernel: wifi: iwlwifi: mvm: check n_ssids before accessing the ssids

Jul 12, 2024

References

git.kernel.org / stable/c/29a18d56bd64b95bd10bda4afda512558471382a
Patch
git.kernel.org / stable/c/3c4771091ea8016c8601399078916f722dd8833b
Patch
git.kernel.org / stable/c/60d62757df30b74bf397a2847a6db7385c6ee281
Patch
git.kernel.org / stable/c/62e007bdeb91c6879a4652c3426aef1cd9d2937b
Patch
git.kernel.org / stable/c/9e719ae3abad60e245ce248ba3f08148f375a614
Patch
git.kernel.org / stable/c/f777792952d03bbaf8329fdfa99393a5a33e2640
Patch
lists.debian.org / debian-lts-announce/2025/01/msg00001.html