CVE-2023-53589wifi: iwlwifi: mvm: don't trust firmware n_channels
Updated under an hour ago ()
Does this affect you?
It affects Linux and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
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.
- CVSS
- 8.8 HIGH (v3.1, CNA)CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Modified
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 15, 2026
Affected products
Linux Linux linux:linux (from the name) | from dcaf9f5ecb6f395152609bdc40660d9b593dca63 before e519a404a5bbba37693cb10fa61794a5fce4fd9b; from dcaf9f5ecb6f395152609bdc40660d9b593dca63 before d0d39bed9e95f27a246be91c5929254ac043ed30; from dcaf9f5ecb6f395152609bdc40660d9b593dca63 before 05ad5a4d421ce65652fcb24d46b7e273130240d6; from dcaf9f5ecb6f395152609bdc40660d9b593dca63 before 557ba100d8cf3661ff8d71c0b4a2cba8db555ec2; from dcaf9f5ecb6f395152609bdc40660d9b593dca63 before c176f03350954b795322de0bfe1d7b514db41f45; from dcaf9f5ecb6f395152609bdc40660d9b593dca63 before 682b6dc29d98e857e6ca4bbc077c7dc2899b7473 | CNA record |
linux linux_kernel linux:linux_kernel | from 4.1 before 5.4.244; from 5.5 before 5.10.181; from 5.11 before 5.15.113; from 5.16 before 6.1.30; from 6.2 before 6.3.4; 6.4; 6.4 | NVD |
References
- https://git.kernel.org/stable/c/e519a404a5bbba37693cb10fa61794a5fce4fd9bpatch
- https://git.kernel.org/stable/c/d0d39bed9e95f27a246be91c5929254ac043ed30patch
- https://git.kernel.org/stable/c/05ad5a4d421ce65652fcb24d46b7e273130240d6patch
- https://git.kernel.org/stable/c/557ba100d8cf3661ff8d71c0b4a2cba8db555ec2patch
- https://git.kernel.org/stable/c/c176f03350954b795322de0bfe1d7b514db41f45patch
- https://git.kernel.org/stable/c/682b6dc29d98e857e6ca4bbc077c7dc2899b7473patch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.