SSH
CVE-2026-1627
MEDIUM
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Lifecycle Timeline
2DescriptionCVE.org
An attacker may exploit the use of outdated and weak MAC algorithms in the device’s SSH service to potentially compromise the integrity of the SSH session, allowing manipulation of transmitted data if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.
AnalysisAI
Outdated MAC algorithms in SSH implementations for Mrs1000 and Lms1000 device firmware enable network-positioned attackers to tamper with session data integrity without user interaction. An attacker with network access can manipulate transmitted SSH traffic due to the use of cryptographically weak message authentication codes. No patch is currently available for affected devices.
Technical ContextAI
Classified as CWE-327 (Use of a Broken or Risky Cryptographic Algorithm). Affects Lms1000 Firmware. An attacker may exploit the use of outdated and weak MAC algorithms in the device’s SSH service to potentially compromise the integrity of the SSH session, allowing manipulation of transmitted data if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.
RemediationAI
Monitor vendor advisories for a patch. Restrict network access to the affected service where possible.
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External POC / Exploit Code
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