CVE-2026-1627

Severity: high (CVSS 8.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-02-27 · updated 2026-06-17
Weakness: CWE-327

Description

An attacker may exploit the use of outdated and weak MAC algorithms in the device’s SSH service to potentially compromise the integrity of the SSH session, allowing manipulation of transmitted data if the attacker can interact with the network traffic.

Affected products

SICK Lms1000 Firmware: before 2.4.1 — fixed in 2.4.1
SICK Mrs1000 Firmware: before 2.4.1 — fixed in 2.4.1

How to fix

Upgrade to a fixed version: SICK Lms1000 Firmware 2.4.1; SICK Mrs1000 Firmware 2.4.1. Check the vendor advisory for mitigations.

References

https://sick.com/psirt
https://www.cisa.gov/resources-tools/resources/ics-recommended-practices
https://www.first.org/cvss/calculator/3.1
https://www.sick.com/.well-known/csaf/white/2026/sca-2026-0005.json
https://www.sick.com/.well-known/csaf/white/2026/sca-2026-0005.pdf
https://www.sick.com/media/docs/9/19/719/special_information_sick_operating_guidelines_cybersecurity_by_sick_en_im0106719.pdf

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