CVE-2023-53589wifi: iwlwifi: mvm: don't trust firmware n_channels
- 8.8HighCVSS base score
- 0.24%Exploitation in 30 daysEPSS · top 85% 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: iwlwifi: mvm: don't trust firmware n_channels If the firmware sends us a corrupted MCC response with n_channels much larger than the command response can be, we might copy far too much (uninitialized) memory and even crash if the n_channels is large enough to make it run out of the one page allocated for the FW response. Fix that by checking the lengths. Doing a < comparison would be sufficient, but the firmware should be doing it correctly, so check more strictly.
Timeline
ID reserved
By Linux
Published
- 13 months later
· 13 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 |
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.24% · top 85% of all CVEs (14 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 8.8.
Affected products
- affected dcaf9f5ecb6f395152609bdc40660d9b593dca63 – < e519a404a5bbba37693cb10fa61794a5fce4fd9b
- affected dcaf9f5ecb6f395152609bdc40660d9b593dca63 – < d0d39bed9e95f27a246be91c5929254ac043ed30
- affected dcaf9f5ecb6f395152609bdc40660d9b593dca63 – < 05ad5a4d421ce65652fcb24d46b7e273130240d6
- affected dcaf9f5ecb6f395152609bdc40660d9b593dca63 – < 557ba100d8cf3661ff8d71c0b4a2cba8db555ec2
- affected dcaf9f5ecb6f395152609bdc40660d9b593dca63 – < c176f03350954b795322de0bfe1d7b514db41f45
- affected dcaf9f5ecb6f395152609bdc40660d9b593dca63 – < 682b6dc29d98e857e6ca4bbc077c7dc2899b7473
- affected 4.1
- unaffected < 4.1
- unaffected 5.4.244 – ≤ 5.4.*
- unaffected 5.10.181 – ≤ 5.10.*
- unaffected 5.15.113 – ≤ 5.15.*
- unaffected 6.1.30 – ≤ 6.1.*
- unaffected 6.3.4 – ≤ 6.3.*
- unaffected 6.4 – ≤ *
References
References6
- https://git.kernel.org/stable/c/e519a404a5bbba37693cb10fa61794a5fce4fd9b (opens in a new tab)
- https://git.kernel.org/stable/c/d0d39bed9e95f27a246be91c5929254ac043ed30 (opens in a new tab)
- https://git.kernel.org/stable/c/05ad5a4d421ce65652fcb24d46b7e273130240d6 (opens in a new tab)
- https://git.kernel.org/stable/c/557ba100d8cf3661ff8d71c0b4a2cba8db555ec2 (opens in a new tab)
- https://git.kernel.org/stable/c/c176f03350954b795322de0bfe1d7b514db41f45 (opens in a new tab)
- https://git.kernel.org/stable/c/682b6dc29d98e857e6ca4bbc077c7dc2899b7473 (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-2025-32274 (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-2023-53589)Record last updated .