Is CVE-2026-1627 in the CISA KEV catalog?

No. CVE-2026-1627 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-1627?

CVE-2026-1627 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2026-1627?

CVE-2026-1627 has an EPSS score of 0.20% (10th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-1627?

Upgrade lms1000 firmware to 2.4.1 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2026-1627

MEDIUM

6.5

CVSS v3

NVD

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An attacker may exploit the use of outdated and weak MAC algorithms in the device’s SSH service to potentially compromise the integrity of the SSH session, allowing manipulation of transmitted data if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

CWE-327

How to fix

Remediation Available

lms1000 firmwareNVD

Affected:< 2.4.1Fixed in:2.4.1CVE-2026-1627derived from NVD

mrs1000 firmwareNVD

Affected:< 2.4.1Fixed in:2.4.1CVE-2026-1627derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityHigh

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Exploit Intelligence

0.20%probability of exploitation in 30 days

10thpercentile

Low risk: more likely to be exploited than 10% of all known CVEs.

References

Vendor Advisory4

Government Resource1

cisa.gov

Other references1

first.org

Related Vulnerabilities

Other CWE-327 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2015-2808	Low	3.7	74%	-	Fix
CVE-2023-34039	Critical	9.8	64%	-	Fix
CVE-2016-6602	Critical	9.8	55%	-	-
CVE-2014-8687	Critical	9.8	44%	-	-
CVE-2020-13777	High	7.4	18%	-	Fix
CVE-2017-17428	Medium	5.9	15%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-03-05.