VULNERABILITY INTELLIGENCE
CVE-2021-34583
CVSS score7.5 HIGH
EPSS probability8.84%
CISA KEVNot currently listed
Published2021-10-26
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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.
Weakness classification
- info@cert.vde.com: CWE-122
- nvd@nist.gov: CWE-787
Primary references
- info@cert.vde.com — Vendor Advisory
- info@cert.vde.com — Exploit, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Exploit, Third Party Advisory