CVE-2022-2153A flaw was found in the Linux kernel’s KVM when attempting to set a SynIC IRQ.
Updated under an hour ago ()
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It affects Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem and 4 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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A flaw was found in the Linux kernel’s KVM when attempting to set a SynIC IRQ. This issue makes it possible for a misbehaving VMM to write to SYNIC/STIMER MSRs, causing a NULL pointer dereference. This flaw allows an unprivileged local attacker on the host to issue specific ioctl calls, causing a kernel oops condition that results in a denial of service.
- 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)
- CWE-476
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- redhat
- NVD analysis
- Modified
- Record last updated
- Oct 14, 2026
- First seen by InfoSec Signals
- Oct 14, 2026
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 | before 5.18 | NVD |
fedoraproject fedora fedoraproject:fedora | 36 | NVD |
redhat enterprise_linux redhat:enterprise_linux | 6.0; 7.0; 8.0; 9.0 | NVD |
debian debian_linux debian:debian_linux | 10.0 | NVD |
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2069736issue-tracking, patch, third-party-advisory
- https://www.openwall.com/lists/oss-security/2022/06/22/1exploit, mailing-list, patch, third-party-advisory
- https://github.com/torvalds/linux/commit/7ec37d1cbe17d8189d9562178d8b29167fe1c31apatch, third-party-advisory
- https://github.com/torvalds/linux/commit/00b5f37189d24ac3ed46cb7f11742094778c46cepatch, third-party-advisory
- https://github.com/torvalds/linux/commit/b1e34d325397a33d97d845e312d7cf2a8b646b44patch, third-party-advisory
- https://lists.debian.org/debian-lts-announce/2022/10/msg00000.htmlmailing-list, third-party-advisory
- https://lists.debian.org/debian-lts-announce/2022/11/msg00001.htmlmailing-list, third-party-advisory
- https://cert-portal.siemens.com/productcert/html/ssa-794697.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.