High severity · published Apr 12, 2022
CVE-2022-25622
The PROFINET (PNIO) stack, when integrated with the Interniche IP stack, improperly handles internal resources for TCP segments where the minimum TCP-Header length is less than…
7.5
CVSS
0.9%
EPSS
No
On KEV
Description
The PROFINET (PNIO) stack, when integrated with the Interniche IP stack, improperly handles internal resources for TCP segments where the minimum TCP-Header length is less than defined.
This could allow an attacker to create a denial of service condition for TCP services on affected devices by sending specially crafted TCP segments.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 60% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SC
Simatic Cfu Diq Firmware · Siemens
All versions, or not specified · source: NVD
SC
Simatic Cfu PA Firmware · Siemens
All versions, or not specified · source: NVD
SS
Simatic S7-1500 Cpu Firmware · Siemens
before 2.0.0 · source: NVD
SS
Simatic S7-300 Cpu Firmware · Siemens
All versions, or not specified · source: NVD
SS
Simatic S7-400 Pn/dp V7 Firmware · Siemens
All versions, or not specified · source: NVD
SS
Simatic S7-400h V6 Firmware · Siemens
All versions, or not specified · source: NVD
SS
Simatic S7-410 V10 Firmware · Siemens
All versions, or not specified · source: NVD
SS
Simatic S7-410 V8 Firmware · Siemens
All versions, or not specified · source: NVD
ST
Simatic Tdc Cp51m1 Firmware · Siemens
All versions, or not specified · source: NVD
ST
Simatic Tdc Cpu555 Firmware · Siemens
All versions, or not specified · source: NVD
SW
Simatic Winac Rtx Firmware · Siemens
All versions, or not specified · source: NVD
SS
Simit Simulation Platform · Siemens
All versions, or not specified · source: NVD