CVE-2026-90374: linux
Vulnerability summary
CVE-2026-90374 is a vulnerability in linux with no CVSS score yet. EPSS estimates a 0.21% chance of exploitation in the next 30 days, higher than 10.4% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 1 · Related 1Timeline
- 17-09-2026PublishedVulnerability first disclosed.
- 21-10-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7996: validate RX band_idx before dereferencing phys[] band_idx comes from a 2-bit descriptor field (0-3) and was used directly to index dev->mt76.phys[] (size __MT_MAX_BAND == 3) and dereference the result. A corrupt or reserved descriptor value could index out of bounds or hit a NULL phy on parts with fewer bands. Reject invalid band indices, mirroring mt7996_rx_get_wcid().
CVSS metrics
Risk metrics not yet published.
EPSS trend
Probability
0.21%
Chance of exploitation in the next 30 days
Percentile
10%
Versus all other CVEs
30-day change
+0.01 pp
From 0.20% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Ubuntu142 products
- linuxAll versions (No fix recorded)
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded)
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Debian2 products
- linux< 6.12.111-1 | < 7.2.6-1
- linux-6.12< 6.12.111-1~deb12u1
Linux1 product
- linux≥ 98686cd21624c75a043e96812beadddf4f6f48e5, < 493a029c205a994644327d554f0cfeb9651aba7c | ≥ 98686cd21624c75a043e96812beadddf4f6f48e5, < 535091c587268cc783608642838a655d828eefdd | ≥ 98686cd21624c75a043e96812beadddf4f6f48e5, < 0f53ece876e1f3bbb3e18f48afc4af1ee967b16c | ≥ 98686cd21624c75a043e96812beadddf4f6f48e5, < b1c5cf8903bec5476a2233b4e45287b9a2213e02 | ≥ 98686cd21624c75a043e96812beadddf4f6f48e5, < 2243778a5fae8329ab5f18e7adcd7e03b911a1b7 | 6.2
3 vendors · 145 products