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NVD / CVE Program· CNA Linux

CVE-2022-49646: wifi: mac80211: fix queue selection for mesh/OCB interfaces

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: 0.26% (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 41ecab279a70dced9005f4d55fa0fcde8938603f, 444be5a02b77f3b7a8ac9c1a0b074fbb3bd89cd0, 50e2ab39291947b6c6c7025cf01707c270fcde59.

Low priority for now. Upgrade to Linux Linux 41ecab279a70dced9005f4d55fa0fcde8938603f, 444be5a02b77f3b7a8ac9c1a0b074fbb3bd89cd0, 50e2ab39291947b6c6c7025cf01707c270fcde59 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: mac80211: fix queue selection for mesh/OCB interfaces When using iTXQ, the code assumes that there is only one vif queue for broadcast packets, using the BE queue. Allowing non-BE queue marking violates that assumption and txq->ac == skb_queue_mapping is no longer guaranteed. This can cause issues with queue handling in the driver and also causes issues with the recent ATF change, resulting in an AQL underflow warning.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Feb 26, 2025
Updated
Jun 17, 2026
EPSS
0.2% · 19th 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 · 0.2%

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-2022-49646

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 kernel5.2 and later · before 5.4.207
  • linux linux kernel5.5 and later · before 5.10.132
  • linux linux kernel5.11 and later · before 5.15.56
  • linux linux kernel5.16 and later · before 5.18.13
  • linux linux kernel5.19

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

    • 5.2affected
    • 1974da8b31e6ea9c96c21505ffcb546fa59add23 and later · before 444be5a02b77f3b7a8ac9c1a0b074fbb3bd89cd0affected · git
    • 1974da8b31e6ea9c96c21505ffcb546fa59add23 and later · before e013ea2a51a94b903b396a8dff531a07d470335daffected · git
    • 1974da8b31e6ea9c96c21505ffcb546fa59add23 and later · before 5a9df31017999197b6e60535940f2f2fe1bd3b0daffected · git
    • 1974da8b31e6ea9c96c21505ffcb546fa59add23 and later · before 41ecab279a70dced9005f4d55fa0fcde8938603faffected · git
    • 1974da8b31e6ea9c96c21505ffcb546fa59add23 and later · before 50e2ab39291947b6c6c7025cf01707c270fcde59affected · git
    • before 5.2not affected · semver
    • 5.4.207 and later · up to and including 5.4.*not affected · semver
    • 5.10.132 and later · up to and including 5.10.*not affected · semver
    • 5.15.56 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.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 5.18.14-15.18.14-1

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-2022-49644Feb 26, 2025 · drm/i915: fix a possible refcount leak in intel_dp_add_mst_connector()
    22Monitor
  • ← EarlierCVE-2022-49645Feb 26, 2025 · drm/panfrost: Fix shrinker list corruption by madvise IOCTL
    31Monitor
  • Later →CVE-2022-49647Feb 26, 2025 · cgroup: Use separate src/dst nodes when preloading css_sets for migration
    31Monitor

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 Linux41ecab279a70dced9005f4d55fa0fcde8938603fVendor (CNA)
Linux Linux444be5a02b77f3b7a8ac9c1a0b074fbb3bd89cd0Vendor (CNA)
Linux Linux50e2ab39291947b6c6c7025cf01707c270fcde59Vendor (CNA)
Linux Linux5a9df31017999197b6e60535940f2f2fe1bd3b0dVendor (CNA)
Linux Linuxe013ea2a51a94b903b396a8dff531a07d470335dVendor (CNA)
debian:linux5.18.14-1 · Debian:12Package 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 (4 more)

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

All records