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NVD / CVE Program· CNA Linux

CVE-2024-36922: wifi: iwlwifi: read txq->read_ptr under lock

Noroxi assessment

Priority: Monitor (action score 22/100)

  • 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: 0.34% (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 43d07103df670484cdd26f9588eabef80f69db89, aab7b39fcac5f6165f6434bcbb56bb7865d4ad2b, b83db8e756dec68a950ed2f056248b1704b3deaa.
  • Severity is disputed: the assigning authority (CNA) scores it 8.8, NVD 5.5.

Low priority for now. Upgrade to Linux Linux 43d07103df670484cdd26f9588eabef80f69db89, aab7b39fcac5f6165f6434bcbb56bb7865d4ad2b, b83db8e756dec68a950ed2f056248b1704b3deaa 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: read txq->read_ptr under lock If we read txq->read_ptr without lock, we can read the same value twice, then obtain the lock, and reclaim from there to two different places, but crucially reclaim the same entry twice, resulting in the WARN_ONCE() a little later. Fix that by reading txq->read_ptr under lock.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
May 30, 2024
Updated
Oct 15, 2026
EPSS
0.3% · 28th percentile
CWE
—

Report tools

JSON

Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.5 / 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
5.5
CNA · Linux
8.8
3.3 point gap

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

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2024-36922

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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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.

VendorProduct
linuxlinux kernel

Affected versions

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

  • linux linux kernelbefore 6.6.31
  • linux linux kernel6.7 and later · before 6.8.10
  • linux linux kernel6.9

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

    • 4.19affected
    • 7b3e42ea2eadd41cc9d6363a9813b8ba8ab6f0e6 and later · before f30e8af109818c9db08cbcc46eb9713fe4b530baaffected · git
    • 7b3e42ea2eadd41cc9d6363a9813b8ba8ab6f0e6 and later · before aab7b39fcac5f6165f6434bcbb56bb7865d4ad2baffected · git
    • 7b3e42ea2eadd41cc9d6363a9813b8ba8ab6f0e6 and later · before b83db8e756dec68a950ed2f056248b1704b3deaaaffected · git
    • 7b3e42ea2eadd41cc9d6363a9813b8ba8ab6f0e6 and later · before 43d07103df670484cdd26f9588eabef80f69db89affected · git
    • 7b3e42ea2eadd41cc9d6363a9813b8ba8ab6f0e6 and later · before c2ace6300600c634553657785dfe5ea0ed688ac2affected · git
    • before 4.19not affected · semver
    • 5.15.209 and later · up to and including 5.15.*not affected · semver
    • 6.1.175 and later · up to and including 6.1.*not affected · semver
    • 6.6.31 and later · up to and including 6.6.*not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.176-16.1.176-1
Debian:13linuxbefore 6.8.11-16.8.11-1
Red Hat:rhel_eus:9.2::appstreambpftool-debuginfobefore 0:7.0.0-284.79.1.el9_20:7.0.0-284.79.1.el9_2
Red Hat:rhel_eus:9.2::appstreamkernel-64k-debug-debuginfobefore 0:5.14.0-284.79.1.el9_20:5.14.0-284.79.1.el9_2
Red Hat:rhel_eus:9.2::appstreamkernel-64k-debug-develbefore 0:5.14.0-284.79.1.el9_20:5.14.0-284.79.1.el9_2
Red Hat:rhel_eus:9.2::appstreamkernel-64k-debug-devel-matchedbefore 0:5.14.0-284.79.1.el9_20:5.14.0-284.79.1.el9_2
Red Hat:rhel_eus:9.2::appstreamkernel-64k-debuginfobefore 0:5.14.0-284.79.1.el9_20:5.14.0-284.79.1.el9_2
Red Hat:rhel_eus:9.2::appstreamkernel-64k-develbefore 0:5.14.0-284.79.1.el9_20:5.14.0-284.79.1.el9_2
Red Hat:rhel_eus:9.2::appstreamkernel-64k-devel-matchedbefore 0:5.14.0-284.79.1.el9_20:5.14.0-284.79.1.el9_2
Red Hat:rhel_eus:9.2::appstreamkernel-debug-debuginfobefore 0:5.14.0-284.79.1.el9_20:5.14.0-284.79.1.el9_2
Red Hat:rhel_eus:9.2::appstreamkernel-debug-develbefore 0:5.14.0-284.79.1.el9_20:5.14.0-284.79.1.el9_2
Red Hat:rhel_eus:9.2::appstreamkernel-debug-devel-matchedbefore 0:5.14.0-284.79.1.el9_20:5.14.0-284.79.1.el9_2
Red Hat:rhel_eus:9.2::appstreamkernel-debuginfobefore 0:5.14.0-284.79.1.el9_20:5.14.0-284.79.1.el9_2
Red Hat:rhel_eus:9.2::appstreamkernel-debuginfo-common-aarch64before 0:5.14.0-284.79.1.el9_20:5.14.0-284.79.1.el9_2
Red Hat:rhel_eus:9.2::appstreamkernel-debuginfo-common-ppc64lebefore 0:5.14.0-284.79.1.el9_20:5.14.0-284.79.1.el9_2
Red Hat:rhel_eus:9.2::appstreamkernel-debuginfo-common-s390xbefore 0:5.14.0-284.79.1.el9_20:5.14.0-284.79.1.el9_2
Red Hat:rhel_eus:9.2::appstreamkernel-debuginfo-common-x86_64before 0:5.14.0-284.79.1.el9_20:5.14.0-284.79.1.el9_2
Red Hat:rhel_eus:9.2::appstreamkernel-develbefore 0:5.14.0-284.79.1.el9_20:5.14.0-284.79.1.el9_2
Red Hat:rhel_eus:9.2::appstreamkernel-devel-matchedbefore 0:5.14.0-284.79.1.el9_20:5.14.0-284.79.1.el9_2
Red Hat:rhel_eus:9.2::appstreamkernel-docbefore 0:5.14.0-284.79.1.el9_20:5.14.0-284.79.1.el9_2
Red Hat:rhel_eus:9.2::appstreamkernel-tools-debuginfobefore 0:5.14.0-284.79.1.el9_20:5.14.0-284.79.1.el9_2
Red Hat:rhel_eus:9.2::appstreamkernel-zfcpdump-debuginfobefore 0:5.14.0-284.79.1.el9_20:5.14.0-284.79.1.el9_2
Red Hat:rhel_eus:9.2::appstreamkernel-zfcpdump-develbefore 0:5.14.0-284.79.1.el9_20:5.14.0-284.79.1.el9_2
Red Hat:rhel_eus:9.2::appstreamkernel-zfcpdump-devel-matchedbefore 0:5.14.0-284.79.1.el9_20:5.14.0-284.79.1.el9_2

+54

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • 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

Published before and after this one in the same product

  • ← EarlierCVE-2024-36911May 30, 2024 · hv_netvsc: Don't free decrypted memory
    22Monitor
  • ← EarlierCVE-2024-36916May 30, 2024 · blk-iocost: avoid out of bounds shift
    28Monitor
  • Later →CVE-2024-36927May 30, 2024 · ipv4: Fix uninit-value access in __ip_make_skb()
    18Monitor

Remediation

Which version to upgrade to

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

Product / packageFixed versionSource
Linux Linux43d07103df670484cdd26f9588eabef80f69db89Vendor (CNA)
Linux Linuxaab7b39fcac5f6165f6434bcbb56bb7865d4ad2bVendor (CNA)
Linux Linuxb83db8e756dec68a950ed2f056248b1704b3deaaVendor (CNA)
Linux Linuxc2ace6300600c634553657785dfe5ea0ed688ac2Vendor (CNA)
Linux Linuxf30e8af109818c9db08cbcc46eb9713fe4b530baVendor (CNA)
debian:linux6.1.176-1 · Debian:12Package registry (OSV)
red hat:bpftool-debuginfo0:7.0.0-284.79.1.el9_2 · Red Hat:rhel_eus:9.2::appstreamPackage registry (OSV)
red hat:kernel-64k-debug-debuginfo0:5.14.0-284.79.1.el9_2 · Red Hat:rhel_eus:9.2::appstreamPackage registry (OSV)
red hat:kernel-64k-debug-devel0:5.14.0-284.79.1.el9_2 · Red Hat:rhel_eus:9.2::appstreamPackage registry (OSV)
red hat:kernel-64k-debug-devel-matched0:5.14.0-284.79.1.el9_2 · Red Hat:rhel_eus:9.2::appstreamPackage registry (OSV)
red hat:kernel-64k-debuginfo0:5.14.0-284.79.1.el9_2 · Red Hat:rhel_eus:9.2::appstreamPackage registry (OSV)
red hat:kernel-64k-devel0:5.14.0-284.79.1.el9_2 · Red Hat:rhel_eus:9.2::appstreamPackage registry (OSV)
red hat:kernel-64k-devel-matched0:5.14.0-284.79.1.el9_2 · Red Hat:rhel_eus:9.2::appstreamPackage registry (OSV)
red hat:kernel-debug-debuginfo0:5.14.0-284.79.1.el9_2 · Red Hat:rhel_eus:9.2::appstreamPackage registry (OSV)
red hat:kernel-debug-devel0:5.14.0-284.79.1.el9_2 · Red Hat:rhel_eus:9.2::appstreamPackage registry (OSV)
red hat:kernel-debug-devel-matched0:5.14.0-284.79.1.el9_2 · Red Hat:rhel_eus:9.2::appstreamPackage registry (OSV)
red hat:kernel-debuginfo0:5.14.0-284.79.1.el9_2 · Red Hat:rhel_eus:9.2::appstreamPackage registry (OSV)
red hat:kernel-debuginfo-common-aarch640:5.14.0-284.79.1.el9_2 · Red Hat:rhel_eus:9.2::appstreamPackage 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.

No history yet (it accumulates with the daily EPSS job).

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).

Technical details

Attack conditions

  • 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.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

—

CVSS vector

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

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (5 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records