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NVD / CVE Program· CNA Linux

CVE-2026-93281: wifi: rtw89: fix HE extended capability length check

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: 0.19% (FIRST EPSS).
  • Fixed version: Linux Linux 2aba608a86e9b099c9af2ea70b620552dee2b628, 655c4401c18d735dbaf2cc172ff4f626b3a896a0, bddbd1de765bf6ddc0473ad683910eb3a2a92a43; azl3 kernel 6.6.150.1-1 on Azure Linux 3.0 Release Notes.

Low priority for now. Upgrade to Linux Linux 2aba608a86e9b099c9af2ea70b620552dee2b628, 655c4401c18d735dbaf2cc172ff4f626b3a896a0, bddbd1de765bf6ddc0473ad683910eb3a2a92a43; azl3 kernel 6.6.150.1-1 on Azure Linux 3.0 Release Notes 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: rtw89: fix HE extended capability length check rtw89_mac_check_he_obss_narrow_bw_ru_iter() reads extended capability byte 10, but rejects only datalen values below 10. Byte 10 requires at least 11 bytes. Require datalen >= 11 before reading data[10].

—No exploit Fix available
Published
Sep 24, 2026
Updated
Oct 19, 2026
EPSS
0.1% · 8th 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%

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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  • when exploit code appears or is weaponized
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Noroxi analysis

What does it mean in your environment?

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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

    • 6.1affected
    • 8d540f9d29162e273797bef36686a010724f0f8a and later · before eddf53f1edb0cf7f302bd15cdb47cca90948c205affected · git
    • 8d540f9d29162e273797bef36686a010724f0f8a and later · before 655c4401c18d735dbaf2cc172ff4f626b3a896a0affected · git
    • 8d540f9d29162e273797bef36686a010724f0f8a and later · before bddbd1de765bf6ddc0473ad683910eb3a2a92a43affected · git
    • 8d540f9d29162e273797bef36686a010724f0f8a and later · before f2a01deff7d0d5cc3dcbf2358dac113979303c8eaffected · git
    • 8d540f9d29162e273797bef36686a010724f0f8a and later · before f132fc01b359a0f7d81fe13d769ea4e7c4baa66eaffected · git
    • 8d540f9d29162e273797bef36686a010724f0f8a and later · before 2aba608a86e9b099c9af2ea70b620552dee2b628affected · git
    • before 6.1not affected · semver
    • 6.1.188 and later · up to and including 6.1.*not affected · semver
    • 6.6.157 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 6.1.190-16.1.190-1
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-2026-93279Sep 24, 2026 · staging: octeon: add missing tasklet_kill in cvm_oct_tx_shutdown
    0Monitor
  • ← EarlierCVE-2026-93280Sep 24, 2026 · greybus: audio: bound the topology section sizes against the fetched size
    35Monitor
  • Later →CVE-2026-93282Sep 24, 2026 · ksmbd: fix maximum allowed access checks
    32Monitor

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 Linux2aba608a86e9b099c9af2ea70b620552dee2b628Vendor (CNA)
Linux Linux655c4401c18d735dbaf2cc172ff4f626b3a896a0Vendor (CNA)
Linux Linuxbddbd1de765bf6ddc0473ad683910eb3a2a92a43Vendor (CNA)
Linux Linuxeddf53f1edb0cf7f302bd15cdb47cca90948c205Vendor (CNA)
Linux Linuxf132fc01b359a0f7d81fe13d769ea4e7c4baa66eVendor (CNA)
Linux Linuxf2a01deff7d0d5cc3dcbf2358dac113979303c8eVendor (CNA)
azl3 kernel 6.6.150.1-1 on Azure Linux 3.0Release NotesMicrosoft (MSRC)
debian:linux6.1.190-1 · Debian:12Package registry (OSV)
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