CVE-2024-40929· NVD / CVE Program· CNA Linux

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

Noroxi assessment

Priority: Monitor (action score 28/100)

The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
Probability of exploitation in the next 30 days: 0.36% (FIRST EPSS).
Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
Fixed version: Linux Linux 29a18d56bd64b95bd10bda4afda512558471382a, 3c4771091ea8016c8601399078916f722dd8833b, 60d62757df30b74bf397a2847a6db7385c6ee281.
Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 29a18d56bd64b95bd10bda4afda512558471382a, 3c4771091ea8016c8601399078916f722dd8833b, 60d62757df30b74bf397a2847a6db7385c6ee281 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: check n_ssids before accessing the ssids In some versions of cfg80211, the ssids poinet might be a valid one even though n_ssids is 0. Accessing the pointer in this case will cuase an out-of-bound access. Fix this by checking n_ssids first.

HighCVSS 7.1 · v3.1—No exploit Fix available

Memory safety

BDU:2025-03406

Published: Jul 12, 2024
Updated: Aug 5, 2026
EPSS: 0.3% · 28th percentile
CWE: CWE-125

Report tools

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Action score

Monitor

Low priority for now.

CVSS: 28 / 40 · 7.1 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.3%

CISA SSVC decision

Exploitation: none
Automatable: no
Technical impact: partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: 7.1
CNA · Linux: 7.1; agree

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

Not in KEV: no record of exploitation in the wild
No public exploit code on record
A fix has been released

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

Vendor	Product	CPE
linux	linux kernel	cpe:2.3:o:linux:linux_kernel

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

linux linux kernel4.17 and later · before 5.10.221
linux linux kernel5.11 and later · before 5.15.162
linux linux kernel5.16 and later · before 6.1.95
linux linux kernel6.2 and later · before 6.6.35
linux linux kernel6.7 and later · before 6.9.6
linux linux kernel6.10

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

Linux Linux
- 4.17affected
- c1a7515393e403758a684fd0a2372af466675b15 and later · before 3c4771091ea8016c8601399078916f722dd8833baffected · git
- c1a7515393e403758a684fd0a2372af466675b15 and later · before f777792952d03bbaf8329fdfa99393a5a33e2640affected · git
- c1a7515393e403758a684fd0a2372af466675b15 and later · before 9e719ae3abad60e245ce248ba3f08148f375a614affected · git
- c1a7515393e403758a684fd0a2372af466675b15 and later · before 29a18d56bd64b95bd10bda4afda512558471382aaffected · git
- c1a7515393e403758a684fd0a2372af466675b15 and later · before 62e007bdeb91c6879a4652c3426aef1cd9d2937baffected · git
- c1a7515393e403758a684fd0a2372af466675b15 and later · before 60d62757df30b74bf397a2847a6db7385c6ee281affected · git
- before 4.17not affected · semver
- 5.10.221 and later · up to and including 5.10.*not affected · semver
- 5.15.162 and later · up to and including 5.15.*not affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Ecosystem	Package	Affected range	Fix
Debian:12	linux	before 6.1.99-1	6.1.99-1
Debian:13	linux	before 6.9.7-1	6.9.7-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV
89Now
CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
85Now
CVE-2016-5195Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect haKEV
83Now

Published before and after this one in the same product

← EarlierCVE-2024-40927Jul 12, 2024 · xhci: Handle TD clearing for multiple streams case
31Monitor
← EarlierCVE-2024-40928Jul 12, 2024 · net: ethtool: fix the error condition in ethtool_get_phy_stats_ethtool()
22Monitor
Later →CVE-2024-40930Jul 12, 2024 · wifi: cfg80211: validate HE operation element parsing
22Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / package	Fixed version	Source
Linux Linux	29a18d56bd64b95bd10bda4afda512558471382a	Vendor (CNA)
Linux Linux	3c4771091ea8016c8601399078916f722dd8833b	Vendor (CNA)
Linux Linux	60d62757df30b74bf397a2847a6db7385c6ee281	Vendor (CNA)
Linux Linux	62e007bdeb91c6879a4652c3426aef1cd9d2937b	Vendor (CNA)
Linux Linux	9e719ae3abad60e245ce248ba3f08148f375a614	Vendor (CNA)
Linux Linux	f777792952d03bbaf8329fdfa99393a5a33e2640	Vendor (CNA)
debian:linux	6.1.99-1 · Debian:12	Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).