Medium severity · published Dec 13, 2022
CVE-2021-44693
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
4.9
CVSS
0.8%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.8% · higher than 55% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SS
Simatic S7-1200 Cpu 12 1211c Firmware · Siemens
before 4.6.0 · source: NVD
SS
Simatic S7-1200 Cpu 12 1212c Firmware · Siemens
before 4.6.0 · source: NVD
SS
Simatic S7-1200 Cpu 12 1212fc Firmware · Siemens
before 4.6.0 · source: NVD
SS
Simatic S7-1200 Cpu 12 1214c Firmware · Siemens
before 4.6.0 · source: NVD
SS
Simatic S7-1200 Cpu 12 1214fc Firmware · Siemens
before 4.6.0 · source: NVD
SS
Simatic S7-1200 Cpu 12 1215c Firmware · Siemens
before 4.6.0 · source: NVD
SS
Simatic S7-1200 Cpu 12 1215fc Firmware · Siemens
before 4.6.0 · source: NVD
SS
Simatic S7-1200 Cpu 12 1217c Firmware · Siemens
before 4.6.0 · source: NVD
SS
Simatic S7-1200 Cpu 1211c Firmware · Siemens
before 4.6.0 · source: NVD
SS
Simatic S7-1200 Cpu 1212c Firmware · Siemens
before 4.6.0 · source: NVD
SS
Simatic S7-1200 Cpu 1212fc Firmware · Siemens
before 4.6.0 · source: NVD
SS
Simatic S7-1200 Cpu 1214 FC Firmware · Siemens
before 4.6.0 · source: NVD
Affected product
SS
Simatic S7-1200 Cpu 12 1211c Firmware
Siemens
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-44693
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-44693
Patch
https://cert-portal.siemens.com/productcert/pdf/ssa-382653.pdf
More from Simatic S7-1200 Cpu 12 1211c Firmware
7.8
CVE-2022-38465
A vulnerability has been identified in SIMATIC Drive Controller family (All versions < V2.9.2), SIMATIC ET 200SP Open Controller CPU 1515SP PC (incl
7.5
CVE-2021-40365
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
5.5
CVE-2021-44694
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
4.9
CVE-2021-44695
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