CVE-2021-34584 CRITICAL

CVE-2021-34584: CODESYS V2 web server: crafted requests could trigger a buffer over-read (DoS)

Vendor Codesys
Product CODESYS V2
Weakness CWE-126
Published October 26, 2021
Last update September 16, 2024
View on NVD All CVEs

CVSS base score

9.1/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

What the vulnerability does

01Description

Crafted web server requests can be utilised to read partial stack or heap memory or may trigger a denial-of- service condition due to a crash in the CODESYS V2 web server prior to V1.1.9.22.

Key dates

02Disclosure timeline

October 26, 2021 CVE published
September 16, 2024 Record updated