Is CVE-2022-27577 actively exploited?

No active exploitation of CVE-2022-27577 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2022-27577 be exploited remotely?

Yes. CVE-2022-27577 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2022-27577?

CVE-2022-27577 has a CVSS score of 9.1 (CRITICAL).

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CRITICAL

CVE-2022-27577

CWE-342Published: April 11, 2022· Updated: Jun 17, 2026

9.1

CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2022-27577 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), availability disruption (denial of service), with a CVSS base score of 9.1.