CVE-2026-1627 Weak cryptography in SICK LMS1000

Medium 6.5 Published Updated

Attackers can compromise SSH session integrity and manipulate data via weak MAC algorithms in SICK laser scanners.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2026-1627?

CVE-2026-1627 is a medium-severity vulnerability in SICK LMS1000, published on 27 Feb 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

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An attacker may exploit the use of outdated and weak MAC algorithms in the device’s SSH service to potentially compromise the integrity of the SSH session, allowing manipulation of transmitted data if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

Weakness: CWE-327

Which versions are affected by CVE-2026-1627?

It affects 2 products.

Products include Sick Lms1000 Firmware, Sick Mrs1000 Firmware.

How do I fix CVE-2026-1627?

No fix has been published for CVE-2026-1627 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-1627 being exploited?

There is no known exploitation of CVE-2026-1627 in the wild and no public exploit code.

Sources

Also known as GHSA-cqcg-78xg-q885.

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