Authentication Bypass via Insecure Default Initialization in OpenPLC_V3 API
CVE-2026-28205 affects OpenPLC_V3 and is described as an Initialization of a Resource with an Insecure Default vulnerability. The issue allows an attacker to bypass authentication via an API and gain access to the system. Based on the provided information, the flaw stems from insecure default initialization of a resource, resulting in an API-accessible authentication bypass condition.
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Impact, mitigation & remediation
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Impact
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Mitigation
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Remediation
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Exploits
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No public exploit code observed for this vulnerability.
Affected products & vendors
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
Recent activity
2 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
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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.