CVE-2026-1627
An attacker may exploit the use of outdated and weak MAC algorithms in the device’s SSH service to potentially compromise the integrity of the SSH session, allowing manipulation of transmitted data if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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.20%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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An attacker may exploit the use of outdated and weak MAC algorithms in the device’s SSH service to potentially compromise the integrity of the SSH session, allowing manipulation of transmitted data if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.
- CVSS 3.1
- 8.1 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
- EPSS
- 0.20% probability · 10th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-327
- Affected
- sick/lms1000 firmware · sick/mrs1000 firmware
- Source
- psirt@sick.de
References
- https://sick.com/psirtVendor Advisory
- https://www.cisa.gov/resources-tools/resources/ics-recommended-practicesUS Government Resource
- https://www.first.org/cvss/calculator/3.1Not Applicable
- https://www.sick.com/.well-known/csaf/white/2026/sca-2026-0005.jsonVendor Advisory
- https://www.sick.com/.well-known/csaf/white/2026/sca-2026-0005.pdfVendor Advisory
- https://www.sick.com/media/docs/9/19/719/special_information_sick_operating_guidelines_cybersecurity_by_sick_en_im0106719.pdfVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.