- —Not scoredno CVSS score yet
- 0.21%Exploitation in 30 daysEPSS · top 89% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: minstrel_ht: validate fixed rate index The fixed_rate_idx debugfs file is a plain u32 attribute, so any value can be written to it. minstrel_ht_update_stats() then copies the value into mi->max_tp_rate[] and mi->max_prob_rate, and minstrel_ht_set_rate() uses MI_RATE_GROUP()/MI_RATE_IDX() to index minstrel_mcs_groups[] (42 entries) and mi->groups[].rates[] (10 entries) with it. Writing e.g. 65535 selects group 4095 and rate index 15, far outside both arrays. The out-of-bounds entries are dereferenced and updated as struct minstrel_rate_stats (retry counts, etc.), so the invalid index corrupts adjacent kernel memory. With CONFIG_UBSAN_BOUNDS the access is reported as an array-index-out-of-bounds in minstrel_ht_set_rate(). Only a valid group/rate pair, or U32_MAX to disable fixed rate processing, can be used safely, so reject any other value when the debugfs file is written. The file is only reachable through a root-only debugfs mount, so this is not a privilege boundary. The out-of-bounds access is still a bug that must not be reachable through a writable debugfs attribute.
Timeline
ID reserved
By Linux
- 23 days later
· 23 days later
Published
- 12 days later
· 12 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.21% · top 89% of all CVEs (11 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 24f7580e852b5472b51eea322bb78454df0054b8 – < 63097bf1b7f17f14bd9ffcae6590c63272da8bb0
- affected 24f7580e852b5472b51eea322bb78454df0054b8 – < 9b685cfb5cc8ed57991b1a956b06c6658d7cf455
- affected 24f7580e852b5472b51eea322bb78454df0054b8 – < eebc70f132041b35da9ec74d5d395083125289b2
- affected 24f7580e852b5472b51eea322bb78454df0054b8 – < f8ab6ae1fa360b0191252677f41e781dcb0ffe6e
- affected 24f7580e852b5472b51eea322bb78454df0054b8 – < 42aa9feb27b600809414a3c6b0c650bafba542a9
- affected 24f7580e852b5472b51eea322bb78454df0054b8 – < 43082d604a9937b94ceb2e484403956d0f363324
- affected 24f7580e852b5472b51eea322bb78454df0054b8 – < 15fb9e3cea55fbc378261ce35a32b0f8828f0000
- affected 3.1
- unaffected < 3.1
- unaffected 5.15.224 – ≤ 5.15.*
- unaffected 6.1.191 – ≤ 6.1.*
- unaffected 6.6.160 – ≤ 6.6.*
- unaffected 6.12.113 – ≤ 6.12.*
- unaffected 6.18.56 – ≤ 6.18.*
- unaffected 7.2.10 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References7
- https://git.kernel.org/stable/c/63097bf1b7f17f14bd9ffcae6590c63272da8bb0 (opens in a new tab)
- https://git.kernel.org/stable/c/9b685cfb5cc8ed57991b1a956b06c6658d7cf455 (opens in a new tab)
- https://git.kernel.org/stable/c/eebc70f132041b35da9ec74d5d395083125289b2 (opens in a new tab)
- https://git.kernel.org/stable/c/f8ab6ae1fa360b0191252677f41e781dcb0ffe6e (opens in a new tab)
- https://git.kernel.org/stable/c/42aa9feb27b600809414a3c6b0c650bafba542a9 (opens in a new tab)
- https://git.kernel.org/stable/c/43082d604a9937b94ceb2e484403956d0f363324 (opens in a new tab)
- https://git.kernel.org/stable/c/15fb9e3cea55fbc378261ce35a32b0f8828f0000 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-103957 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-98703)Record last updated .