2021-33485 | CODESYS Control Runtime System heap-based overflow
|CVSS Meta Temp Score
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|CTI Interest Score
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A vulnerability has been found in CODESYS Control Runtime System and classified as critical. Affected by this vulnerability is some unknown functionality. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-122. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:
CODESYS Control Runtime system before 18.104.22.168 has a Heap-based Buffer Overflow.
The weakness was shared 08/04/2021. The advisory is shared at customers.codesys.com. This vulnerability is known as CVE-2021-33485 since 05/21/2021. The exploitation appears to be easy. The attack can only be initiated within the local network. A single authentication is required for exploitation. Neither technical details nor an exploit are publicly available.
Upgrading to version 22.214.171.124 eliminates this vulnerability.
VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3
Status: Not defined
0-Day Time: 🔒
Upgrade: Control Runtime System 126.96.36.199
Created: 08/04/2021 12:34
Updated: 08/07/2021 17:53
Changes: (3) source_cve_assigned source_cve_nvd_summary advisory_confirm_url
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