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NVD / CVE Program· CNA Linux

CVE-2026-90375: wifi: mt76: fix non-AQL packet accounting for MLO stations

Noroxi assessment

Priority: Monitor (action score 0/100)

  • 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: 0.17% (FIRST EPSS).
  • Fixed version: Linux Linux 186c957ac3325aefb982567ffdd3654b283688a7, 2c321f86846ead00552bc65f73f5b5f1f81d4023, 8ae659743ba936b22ecb4620815887728e2820d6.

Low priority for now. Upgrade to Linux Linux 186c957ac3325aefb982567ffdd3654b283688a7, 2c321f86846ead00552bc65f73f5b5f1f81d4023, 8ae659743ba936b22ecb4620815887728e2820d6 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: mt76: fix non-AQL packet accounting for MLO stations __mt76_tx_queue_skb() overrides the wcid passed by the driver with sta->drv_priv, so the wcid might incorrectly be changed after TX, causing wcid->non_aql_packets to be counted on the wrong wcid. For example, on the AP side, if a station's setup link is the 5G link and the station uses 2G to transmit a frame, the value of non_aql_packets is increased on the 5G wcid but decreased on the 2G wcid. Once the inflated counter exceeds MT_MAX_NON_AQL_PKT, the TX scheduler permanently refuses to service the station. Drop the reassignment and account on the wcid used for transmission. This also records the actual wcid in the queue entry.

—No exploit Fix available
Published
Sep 17, 2026
Updated
Oct 30, 2026
EPSS
0.1% · 6th percentile
CWE
—

Report tools

JSON

Action score

0

Monitor

Low priority for now.

CVSS
0 / 40 · —
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

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  • 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.

—

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

    • 5.10affected
    • e1378e5228aaa1bf6bb253a379c7de1722a94e00 and later · before f94842ee088744a9e4b3b3ce4c91e897c4e72abaaffected · git
    • e1378e5228aaa1bf6bb253a379c7de1722a94e00 and later · before 2c321f86846ead00552bc65f73f5b5f1f81d4023affected · git
    • e1378e5228aaa1bf6bb253a379c7de1722a94e00 and later · before f85f6933cc170155f1c7c2dffdd014965787c71baffected · git
    • e1378e5228aaa1bf6bb253a379c7de1722a94e00 and later · before fc7fae55255ccbde009232e84b102d2782a69ecfaffected · git
    • e1378e5228aaa1bf6bb253a379c7de1722a94e00 and later · before 186c957ac3325aefb982567ffdd3654b283688a7affected · git
    • e1378e5228aaa1bf6bb253a379c7de1722a94e00 and later · before 8ae659743ba936b22ecb4620815887728e2820d6affected · git
    • before 5.10not affected · semver
    • 6.1.191 and later · up to and including 6.1.*not affected · semver
    • 6.6.160 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:12linuxfrom 0—
Debian:12linux-6.12before 6.12.111-1~deb12u16.12.111-1~deb12u1
Debian:13linuxbefore 6.12.111-16.12.111-1
Debian:14linuxbefore 7.2.6-17.2.6-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-74705udp: fix potential use-after-free in tunnel segmentation
    40Plan
  • CVE-2026-74612veth: fix skb length accounting after XDP frag adjustment
    40Plan
  • CVE-2026-74475vxlan: use neigh_ha_snapshot() in route_shortcircuit()
    40Plan

Published before and after this one in the same product

  • ← EarlierCVE-2026-90373Sep 17, 2026 · wifi: mt76: mt7915: clear wcid mask under mutex after RCU pointer clear
    0Monitor
  • ← EarlierCVE-2026-90374Sep 17, 2026 · wifi: mt76: mt7996: validate RX band_idx before dereferencing phys[]
    0Monitor
  • Later →CVE-2026-90376Sep 17, 2026 · wifi: mt76: mt7996: fix MLD ID in MAC TXD and HIF TXP
    0Monitor

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 Linux186c957ac3325aefb982567ffdd3654b283688a7Vendor (CNA)
Linux Linux2c321f86846ead00552bc65f73f5b5f1f81d4023Vendor (CNA)
Linux Linux8ae659743ba936b22ecb4620815887728e2820d6Vendor (CNA)
Linux Linuxf85f6933cc170155f1c7c2dffdd014965787c71bVendor (CNA)
Linux Linuxf94842ee088744a9e4b3b3ce4c91e897c4e72abaVendor (CNA)
Linux Linuxfc7fae55255ccbde009232e84b102d2782a69ecfVendor (CNA)
debian:linux6.12.111-1 · Debian:13Package registry (OSV)
debian:linux-6.126.12.111-1~deb12u1 · 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.

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).

Technical details

No CVSS vector for this record, so attack conditions can't be derived.

Weakness class (CWE)

—

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✗ → ✓

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References

Show all references (5 more)

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

All records