CVE-2026-1626

Severity: critical (CVSS 9.1 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 weak CBC-based cipher suites in the device’s SSH service to potentially observe or manipulate parts of the encrypted SSH communication, if they are able to intercept or 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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