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      <title>CVE-2026-76992 — Uncontrolled Memory Allocation in CODESYS Gateway Client</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2026-76992</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; CODESYS Development System 3, CODESYS Gateway, CODESYS Edge Gateway for Windows, CODESYS HMI (SL), CODESYS OPC DA Server SL, CODESYS PLCHandler, CODESYS Runtime Toolkit, CODESYS Edge Gateway for Linux&lt;/p&gt;
&lt;p&gt;The CODESYS Gateway Client allocates memory based on a size field in a gateway response without enforcing an appropriate upper limit. An unauthenticated remote attacker controlling a malicious gateway can exploit this behavior to trigger excessive memory consumption, resulting in a denial-of-service condition thus leading to a total loss of availablity.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; CODESYS Development System 3, CODESYS Gateway, CODESYS Edge Gateway for Windows, CODESYS HMI (SL), CODESYS OPC DA Server SL, CODESYS PLCHandler, CODESYS Runtime Toolkit, CODESYS Edge Gateway for Linux&lt;/p&gt;
&lt;p&gt;The CODESYS Gateway Client allocates memory based on a size field in a gateway response without enforcing an appropriate upper limit. An unauthenticated remote attacker controlling a malicious gateway can exploit this behavior to trigger excessive memory consumption, resulting in a denial-of-service condition thus leading to a total loss of availablity.&lt;/p&gt;</content:encoded>
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