CVE-2026-53182wifi: nl80211: reject oversized EMA RNR lists
- 7.8HighCVSS base score
- 0.13%Exploitation in 30 daysEPSS · top 97% 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: nl80211: reject oversized EMA RNR lists nl80211_parse_rnr_elems() stores the parsed element count in a u8-backed cfg80211_rnr_elems::cnt field and uses that count to size the flexible array allocation. Reject nested NL80211_ATTR_EMA_RNR_ELEMS input once the count reaches 255, before incrementing it again. This keeps the parser aligned with the data structure it fills and matches the existing bound check used by nl80211_parse_mbssid_elems().
Timeline
ID reserved
By Linux
- 16 days later
· 16 days later
Published
- 4 months later
· 4 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 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.13% · top 97% of all CVEs (15 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
- affected 56189d7bc30531def6b999f27940ee43c6ff2569 – < fc0ec2fc02dfe52c5821f36fbccf6a45df43f508
- affected dbbb27e183b1568d5a907ace1cd144b0709ea52a – < 688fcac7054abc680c0eef753f2bb772cfaf8cf7
- affected dbbb27e183b1568d5a907ace1cd144b0709ea52a – < 30c3fa80f423613efdda3deca4af52ff7d20e4e2
- affected dbbb27e183b1568d5a907ace1cd144b0709ea52a – < 265c07c09c837621730d35f02975207a1224bf05
- affected dbbb27e183b1568d5a907ace1cd144b0709ea52a – < ecbf3c45add30a0857414e156bdb9c79906f0ff6
- affected dbbb27e183b1568d5a907ace1cd144b0709ea52a – < 4cd92957e8f8cc4ebfe8a5d4203c14c592fde6b1
- affected 6.1.160 – < 6.1.176
- affected 6.4
- unaffected < 6.4
- unaffected 6.1.176 – ≤ 6.1.*
- unaffected 6.6.143 – ≤ 6.6.*
- unaffected 6.12.94 – ≤ 6.12.*
- unaffected 6.18.36 – ≤ 6.18.*
- unaffected 7.0.13 – ≤ 7.0.*
- unaffected 7.1 – ≤ *
References
References6
- https://git.kernel.org/stable/c/fc0ec2fc02dfe52c5821f36fbccf6a45df43f508 (opens in a new tab)
- https://git.kernel.org/stable/c/688fcac7054abc680c0eef753f2bb772cfaf8cf7 (opens in a new tab)
- https://git.kernel.org/stable/c/30c3fa80f423613efdda3deca4af52ff7d20e4e2 (opens in a new tab)
- https://git.kernel.org/stable/c/265c07c09c837621730d35f02975207a1224bf05 (opens in a new tab)
- https://git.kernel.org/stable/c/ecbf3c45add30a0857414e156bdb9c79906f0ff6 (opens in a new tab)
- https://git.kernel.org/stable/c/4cd92957e8f8cc4ebfe8a5d4203c14c592fde6b1 (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-2026-39273 (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-2026-53182)Record last updated .