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CVE-2025-67039 is an authentication-bypass vulnerability in Lantronix EDS3000PS firmware version 3.1.0.0R2. Management-page authentication can be bypassed by requesting a management URL with a crafted suffix while supplying an HTTP Authorization header whose username is set to admin. The alternate request path incorrectly permits access without validating the administrator password.
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An authentication bypass in Lantronix EDS3000PS management pages allowing unauthenticated access via a crafted URL suffix and Authorization header.
An authentication bypass vulnerability affecting the discussed serial-to-IP converter products.
An authentication-bypass vulnerability affecting management pages in Lantronix EDS3000PS firmware version 3.1.0.0R2. An attacker can bypass authentication using a specific URL suffix together with an Authorization header using "admin" as the username.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.