What’s Vulnerable › Vulnerabilities
CVE-2022-27577
- Severity: critical (CVSS 9.1 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 1.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2022-04-11 · updated 2026-06-17
- Weakness: CWE-342
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.
Affected products
- SICK MSC800: before 4.15 — fixed in 4.15
How to fix
Upgrade to a fixed version: SICK MSC800 4.15. Check the vendor advisory for mitigations.
References
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