Back
CVE-2026-46166wifi: mac80211: use safe list iteration in radar detect work
- 8.8HighCVSS base score
- 0.20%Exploitation in 30 daysEPSS · top 90% 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: use safe list iteration in radar detect work The call to ieee80211_dfs_cac_cancel can cause the iterated chanctx to be freed and removed from the list. Guard against this to avoid a slab-use-after-free error.
Timeline
ID reserved
By Linux
- 15 days later
· 15 days later
Published
- 5 months later
· 5 months 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
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High8.8 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| redhat-SADPADP (enrichment) | 3.1 | High7.0 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | High8.8 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.20% · top 90% of all CVEs (12 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.8.
Affected products
- affected bca8bc0399ac2efd56e6adbed0307e10125a556c – < 887ece6c23b49d02a6678e7a8d5ad213d75883ce
- affected bca8bc0399ac2efd56e6adbed0307e10125a556c – < 7577a4b8a10fab45a6ee2045ea038a5adadbb585
- affected bca8bc0399ac2efd56e6adbed0307e10125a556c – < 120149fb3ebcf674832ca3cafd32bedcdb686dde
- affected bca8bc0399ac2efd56e6adbed0307e10125a556c – < ac8eb3e18f41e2cc8492cc1d358bcb786c850270
- affected 6.12
- unaffected < 6.12
- unaffected 6.12.88 – ≤ 6.12.*
- unaffected 6.18.30 – ≤ 6.18.*
- unaffected 7.0.7 – ≤ 7.0.*
- unaffected 7.1 – ≤ *
References
References11
- https://git.kernel.org/stable/c/887ece6c23b49d02a6678e7a8d5ad213d75883ce (opens in a new tab)
- https://git.kernel.org/stable/c/7577a4b8a10fab45a6ee2045ea038a5adadbb585 (opens in a new tab)
- https://git.kernel.org/stable/c/120149fb3ebcf674832ca3cafd32bedcdb686dde (opens in a new tab)
- https://git.kernel.org/stable/c/ac8eb3e18f41e2cc8492cc1d358bcb786c850270 (opens in a new tab)
- https://access.redhat.com/security/cve/CVE-2026-46166 (opens in a new tab)vdb-entryx_refsource_REDHAT
- RHBZ#2482645 (opens in a new tab)issue-trackingx_refsource_REDHAT
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46166.json (opens in a new tab)x_sadp-csaf-vex
- https://access.redhat.com/errata/RHSA-2026:33215 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:27288 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:27708 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:27789 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
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-2026-32793 (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-2026-46166)Record last updated .