Critical severity · published Feb 11, 2026
CVE-2026-25084
ZLAN Information Technology ZLAN5143D Missing Authentication for Critical Function
9.8
CVSS
0.8%
EPSS
No
On KEV
Description
Authentication for ZLAN5143D can be bypassed by directly accessing internal URLs.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.8% · higher than 57% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ZL
ZLAN5143D · ZLAN Information Technology Co.
v1.600 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-25084
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-25084
github.com
https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-041-02.json
www.cisa.gov
https://www.cisa.gov/news-events/ics-advisories/icsa-26-041-02
www.zlmcu.com
https://www.zlmcu.com/en/contact_us.htm
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ZLAN Information Technology ZLAN5143D Missing Authentication for Critical Function