2021-36764 | CODESYS Gateway Communication null pointer dereference
|CVSS Meta Temp Score
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|CTI Interest Score
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A vulnerability classified as problematic has been found in CODESYS Gateway. This affects an unknown code of the component Communication Handler. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-476. This is going to have an impact on availability. The summary by CVE is:
In CODESYS Gateway V3 before 126.96.36.199, there is a NULL Pointer Dereference. Crafted communication requests may cause a Null pointer dereference in the affected CODESYS products and may result in a denial-of-service condition.
The weakness was published 08/05/2021. It is possible to read the advisory at customers.codesys.com. This vulnerability is uniquely identified as CVE-2021-36764 since 07/16/2021. The attack needs to be initiated within the local network. A authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available.
Upgrading to version 188.8.131.52 eliminates this vulnerability.
VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.4
Status: Not defined
0-Day Time: 🔒
Upgrade: Gateway 184.108.40.206
Created: 08/05/2021 08:26
Updated: 08/08/2021 15:46
Changes: (3) source_cve_assigned source_cve_nvd_summary advisory_confirm_url
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