High severity7.5NVD Advisory· Published Oct 26, 2021· Updated Jun 17, 2026
CVE-2021-34583
CVE-2021-34583
Description
Crafted web server requests may cause a heap-based buffer overflow and could therefore trigger a denial-of- service condition due to a crash in the CODESYS V2 web server prior to V1.1.9.22.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
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
News mentions
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