High 7.8Published Oct 12, 2022

CVE-2022-42720Various refcounting bugs in the multi-BSS handling in the mac80211 stack in the Linux kernel 5.1 through 5.19.x before 5.19.16 could be used by local attackers (able to inject WLAN frames) to trigger…

Updated under an hour ago (Oct 27, 2026, 4:00 AM ET)

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It affects Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem and 3 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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Every CVE for Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem

Exploited in the last 30 days

Various refcounting bugs in the multi-BSS handling in the mac80211 stack in the Linux kernel 5.1 through 5.19.x before 5.19.16 could be used by local attackers (able to inject WLAN frames) to trigger use-after-free conditions to potentially execute code.

CVSS: 7.8 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-416
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: mitre
NVD analysis: Modified
Record last updated: Oct 14, 2026
First seen by InfoSec Signals: Oct 14, 2026

Affected products

Affected products

Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem siemens:simatic_s7_1500_tm_mfp_gnu_linux_subsystem (from the name)	before V1.1	CISA ADP
linux linux_kernel linux:linux_kernel	from 5.1 before 5.4.218; from 5.5 before 5.10.148; from 5.11 before 5.15.74; from 5.16 before 5.19.16; from 6.0 before 6.0.2	NVD
fedoraproject fedora fedoraproject:fedora	36; 37	NVD
debian debian_linux debian:debian_linux	10.0; 11.0	NVD

References

References

https://bugzilla.suse.com/show_bug.cgi?id=1204059	issue-tracking, patch, third-party-advisory
http://www.openwall.com/lists/oss-security/2022/10/13/5	exploit, mailing-list, third-party-advisory
https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless.git/commit/?id=0b7808818cb9df6680f98996b8e9a439fa7bcc2f	mailing-list, patch, vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GGHENNMLCWIQV2LLA56BJNFIUZ7WB4IY/	vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VNN3VFQPECS6D4PS6ZWD7AFXTOSJDSSR/	vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/S2KTU5LFZNQS7YNGE56MT46VHMXL3DD2/	vendor-advisory
https://www.debian.org/security/2022/dsa-5257	vendor-advisory, third-party-advisory
https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html	mailing-list, third-party-advisory
http://packetstormsecurity.com/files/169951/Kernel-Live-Patch-Security-Notice-LSN-0090-1.html	third-party-advisory, vdb-entry
https://security.netapp.com/advisory/ntap-20230203-0008/	third-party-advisory
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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.