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Medium 6.7Published Jul 18, 2022
CVE-2021-33655When sending malicous data to kernel by ioctl cmd FBIOPUT_VSCREENINFO,kernel will write memory out of bounds.
Updated under an hour ago ()
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It affects Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem 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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When sending malicous data to kernel by ioctl cmd FBIOPUT_VSCREENINFO,kernel will write memory out of bounds.
- CVSS
- 6.7 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-787
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- openEuler
- 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 5.19; 5.19; 5.19; 5.19; 5.19; 5.19 | NVD |
debian debian_linux debian:debian_linux | 10.0; 11.0 | NVD |
References
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=086ff84617185393a0bbf25830c4f36412a7d3f4x-refsource-misc, mailing-list, patch, vendor-advisory
- http://www.openwall.com/lists/oss-security/2022/07/19/2mailing-list, x-refsource-mlist, patch, third-party-advisory
- https://www.debian.org/security/2022/dsa-5191vendor-advisory, x-refsource-debian, third-party-advisory
- https://lists.debian.org/debian-lts-announce/2022/10/msg00000.htmlmailing-list, x-refsource-mlist, 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.