CVE-2026-23367wifi: radiotap: reject radiotap with unknown bits
Updated under an hour ago ()
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It affects Linux and 2 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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In the Linux kernel, the following vulnerability has been resolved: wifi: radiotap: reject radiotap with unknown bits The radiotap parser is currently only used with the radiotap namespace (not with vendor namespaces), but if the undefined field 18 is used, the alignment/size is unknown as well. In this case, iterator->_next_ns_data isn't initialized (it's only set for skipping vendor namespaces), and syzbot points out that we later compare against this uninitialized value. Fix this by moving the rejection of unknown radiotap fields down to after the in-namespace lookup, so it will really use iterator->_next_ns_data only for vendor namespaces, even in case undefined fields are present.
- CVSS
- 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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 9, 2026
Affected products
Linux Linux linux:linux (from the name) | 33e5a2f776e331dc8a4379b6efb660d38f182d96 builds before 6f80f6a60f5d87e5de5fb2732751fce799991c24; from 33e5a2f776e331dc8a4379b6efb660d38f182d96 before d1d1d3c50095928624a95b67a6d7ccc3a18f2215; from 33e5a2f776e331dc8a4379b6efb660d38f182d96 before 703fa979badbba83d31cd011606d060bfb8b0d1d; from 33e5a2f776e331dc8a4379b6efb660d38f182d96 before 129c8bb320a7cef692c78056ef8e89a2a12ba448; 33e5a2f776e331dc8a4379b6efb660d38f182d96 builds before 2a60c588d5d39ad187628f58395c776a97fd4323; 33e5a2f776e331dc8a4379b6efb660d38f182d96 builds before 2f8ceeba670610d66f77def32011f48de951d781; from 33e5a2f776e331dc8a4379b6efb660d38f182d96 before e664971759a0e5570b50c6592e58a7f97d55e992; from 33e5a2f776e331dc8a4379b6efb660d38f182d96 before c854758abe0b8d86f9c43dc060ff56a0ee5b31e0 | CNA record |
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem siemens:simatic_s7_1500_tm_mfp_gnu_linux_subsystem (from the name) | all versions | CISA ADP |
linux linux_kernel linux:linux_kernel | from 2.6.34.1 before 5.10.253; from 5.11 before 5.15.203; from 5.16 before 6.1.167; from 6.2 before 6.6.130; from 6.7 before 6.12.77; from 6.13 before 6.18.17; from 6.19 before 6.19.7; 2.6.34; and 7 more ranges | NVD |
References
- https://git.kernel.org/stable/c/6f80f6a60f5d87e5de5fb2732751fce799991c24patch
- https://git.kernel.org/stable/c/d1d1d3c50095928624a95b67a6d7ccc3a18f2215patch
- https://git.kernel.org/stable/c/703fa979badbba83d31cd011606d060bfb8b0d1dpatch
- https://git.kernel.org/stable/c/129c8bb320a7cef692c78056ef8e89a2a12ba448patch
- https://git.kernel.org/stable/c/2a60c588d5d39ad187628f58395c776a97fd4323patch
- https://git.kernel.org/stable/c/2f8ceeba670610d66f77def32011f48de951d781patch
- https://git.kernel.org/stable/c/e664971759a0e5570b50c6592e58a7f97d55e992patch
- https://git.kernel.org/stable/c/c854758abe0b8d86f9c43dc060ff56a0ee5b31e0patch
- https://cert-portal.siemens.com/productcert/html/ssa-784472.html
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.