Critical severity · published Apr 11, 2022
CVE-2022-27577
The vulnerability in the MSC800 in all versions before 4.15 allows for an attacker to predict the TCP initial sequence number
9.1
CVSS
1.4%
EPSS
No
On KEV
Description
The vulnerability in the MSC800 in all versions before 4.15 allows for an attacker to predict the TCP initial sequence number. When the TCP sequence is predictable, an attacker can send packets that are forged to appear to come from a trusted computer. These forged packets could compromise services on the MSC800. SICK has released a new firmware version of the SICK MSC800 and recommends updating to the newest version.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.4% · higher than 73% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MF
Msc800 Firmware · Sick
before 4.15 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-27577
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-27577
Vendor Advisory
https://sick.com/psirt
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