wifi: rtw89: fix HE extended capability length check
Priority LOW 22Published · Updated
Key facts
- Attack vector
- —
- Privileges required
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- User interaction
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- Attack complexity
- —
- Impact type
- —
- Confidentiality · integrity · availability
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- Fix status
- Partial Red Hat: 5 without a fix
No CVSS vector from any source. Fix status from CNA and Red Hat.
Summary
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].
Why it matters now
EPSS 0.00192 8th percentileScored 2026-11-07
Fix Partial Linux (Linux): 6.1.188, 6.6.157, 6.12.110 +3Red Hat: 5 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA Linux (Linux) Fixed in 6.1.188, 6.6.157, 6.12.110, 6.18.52, 7.2.6, 7.3
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 10 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Container Platform 4 | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Container Platform 5 | Affected | No fix yet: Fix deferred |
Not affected: 3 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat OpenShift Container Platform 4
Timeline
- 2026-10-02 Threatist record created from CVE-2026-93281
- 2026-10-03 Alias added: GHSA-fc4w-fg4f-8x55
- 2026-10-19 Fix available: Linux/[email protected] · CNA
- 2026-11-06 Affected versions changed · Red Hat
References
Other 6
- https://git.kernel.org/stable/c/eddf53f1edb0cf7f302bd15cdb47cca90948c205
- https://git.kernel.org/stable/c/655c4401c18d735dbaf2cc172ff4f626b3a896a0
- https://git.kernel.org/stable/c/bddbd1de765bf6ddc0473ad683910eb3a2a92a43
- https://git.kernel.org/stable/c/f2a01deff7d0d5cc3dcbf2358dac113979303c8e
- https://git.kernel.org/stable/c/f132fc01b359a0f7d81fe13d769ea4e7c4baa66e
- https://git.kernel.org/stable/c/2aba608a86e9b099c9af2ea70b620552dee2b628
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Sources
- CVE-2026-93281 · CVE Program
- CVE-2026-93281 · NVD
- FIRST EPSS
- GHSA-fc4w-fg4f-8x55 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-93281 · Red Hat security data · CC BY 4.0
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