High severity7.5NVD Advisory· Published Oct 26, 2021· Updated Jun 17, 2026
CVE-2021-34585
CVE-2021-34585
Description
In the CODESYS V2 web server prior to V1.1.9.22 crafted web server requests can trigger a parser error. Since the parser result is not checked under all conditions, a pointer dereference with an invalid address can occur. This leads to a denial of service situation.
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Affected products
2- Range: <1.1.9.22
Patches
Vulnerability mechanics
References
2- www.tenable.com/security/research/tra-2021-47nvdExploitThird Party Advisory
- customers.codesys.com/index.phpnvdVendor Advisory
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