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CVE-2026-90372

HIGHCVSS 7.1/10

Last modified

CVE-2026-90372 is a high-severity vulnerability rated 7.1/10 on the CVSS scale. In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7915: avoid nss underflow in mt7915_mcu_get_sta_nss If a peer's VHT/HE MCS map has no supported spatial stream (all fields 0x3), the loop exits with nss == 0 and the function returned (u8)-1 (255), which was then written into the firmware sta_rec_bf beamforming fields. Clamp the result to 0..

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7915: avoid nss underflow in mt7915_mcu_get_sta_nss If a peer's VHT/HE MCS map has no supported spatial stream (all fields 0x3), the loop exits with nss == 0 and the function returned (u8)-1 (255), which was then written into the firmware sta_rec_bf beamforming fields. Clamp the result to 0.

Metrics

CVSS 3.1
7.1/10

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

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 89029a85482cbcf68026a89fc974e8f6898d6b37, < 2801477c36a19be4f549fe60e54995f03b0ea7b9; >= 89029a85482cbcf68026a89fc974e8f6898d6b37, < 38f4d6323bcd65e41a691432eddabd2b03acdeee; >= 89029a85482cbcf68026a89fc974e8f6898d6b37, < 25f753f7f620955a8a51e63e445d8b9076c51396; >= 89029a85482cbcf68026a89fc974e8f6898d6b37, < e63c6291ecddf94769ab91f9d8cdb6ca939f7fc6; >= 89029a85482cbcf68026a89fc974e8f6898d6b37, < 85bd46ab7674b6d357f9a14791352c65fb09eee9; >= 89029a85482cbcf68026a89fc974e8f6898d6b37, < 6ce78d04c7ea4b66838941b5a4232dd1ee0e2cc7; >= 89029a85482cbcf68026a89fc974e8f6898d6b37, < ecfd1a07e78c31d81322fb2d81dc468081cc3004; >= 89029a85482cbcf68026a89fc974e8f6898d6b37, < 4a2f4be532e3ea4e2b536e411793a05aaa51af25
LinuxLinux5.8

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-90372?
In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7915: avoid nss underflow in mt7915_mcu_get_sta_nss If a peer's VHT/HE MCS map has no supported spatial stream (all fields 0x3), the loop exits with nss == 0 and the function returned (u8)-1 (255), which was then written into the firmware sta_rec_bf beamforming fields. Clamp the result to 0.
How severe is CVE-2026-90372?
CVE-2026-90372 has a CVSS score of 7.1/10 (HIGH severity).
How do I fix CVE-2026-90372?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST