CVE-2022-27577

CRITICAL

SICK MSC800 Firmware < 4.15 - TCP Sequence Number Prediction

Title source: llm

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.

References (1)

Core 1

Core References

Vendor Advisory x_refsource_misc

https://sick.com/psirt

Scores

CVSS v3 9.1

EPSS 0.0135

EPSS Percentile 67.9%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Details

CWE

CWE-342 CWE-330

Status published

Products (1)

sick/msc800_firmware < 4.15

Published Apr 11, 2022

Tracked Since Feb 18, 2026