CVE-2021-44693
Medium
Published: 13 December 2022
Published
13 December 2022
Modified
21 November 2024
KEV Added
—
Patch
—
CVSS Score v3.1
4.9
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
EPSS Score
0.0019
41.1th percentile
Risk Priority
10
60% EPSS · 20% KEV · 20% CVSS
Summary
CVE-2021-44693 is a medium-severity Improper Validation of Specified Quantity in Input (CWE-1284) vulnerability in Siemens Simatic S7-Plcsim Advanced Firmware. Its CVSS base score is 4.9 (Medium).
Operationally, ranked at the 41.1th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2021-31509
Vulnerability details
Affected devices don't process correctly certain special crafted packets sent to port 102/tcp, which could allow an attacker to cause a denial of service in the device.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
siemens
simatic s7-plcsim advanced firmware
≤ 5.0
siemens
simatic s7-1200 cpu 1211c firmware
≤ 4.6.0
siemens
simatic s7-1200 cpu 1212c firmware
≤ 4.6.0
siemens
simatic s7-1200 cpu 1212fc firmware
≤ 4.6.0
siemens
simatic s7-1200 cpu 1214 fc firmware
≤ 4.6.0
siemens
simatic s7-1200 cpu 1214c firmware
≤ 4.6.0
siemens
simatic s7-1200 cpu 1214fc firmware
≤ 4.6.0
siemens
simatic s7-1200 cpu 1215 fc firmware
≤ 4.6.0
siemens
simatic s7-1200 cpu 1215c firmware
≤ 4.6.0
siemens
simatic s7-1200 cpu 1215fc firmware
≤ 4.6.0
+86 more product configuration(s) — see NVD for full list
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.