CVEvulnerability
CVE-2021-34596
6.5 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2021-10-26
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- CVSS 3.1 ([email protected])
- 6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 4.0 MEDIUM — AV:N/AC:L/Au:S/C:N/I:N/A:P
- Weaknesses
- CWE-824
Description
A crafted request may cause a read access to an uninitialized pointer in CODESYS V2 Runtime Toolkit 32 Bit full and PLCWinNT prior to versions V2.4.7.56, resulting in a denial-of-service condition.
Affected configurations
• wago 750-823 firmware (< fw10)
• wago 750-829 firmware (< fw17)
• wago 750-831 firmware (< fw17)
• wago 750-832 firmware (< fw10)
• wago 750-852 firmware (< fw17)
• wago 750-862 firmware (< fw10)
• wago 750-880 firmware (< fw17)
• wago 750-881 firmware (< fw17)
• wago 750-882 firmware (< fw17)
• wago 750-885 firmware (< fw17)
• wago 750-889 firmware (< fw17)
• wago 750-890 firmware (< fw10)
• wago 750-891 firmware (< fw10)
• wago 750-893 firmware (< fw10)
• wago 750-8202 firmware (< fw20)
• wago 750-8203 firmware (< fw20)
• wago 750-8204 firmware (< fw20)
• wago 750-8206 firmware (< fw20)
• wago 750-8207 firmware (< fw20)
• wago 750-8208 firmware (< fw20)
• wago 750-8210 firmware (< fw20)
• wago 750-8211 firmware (< fw20)
• wago 750-8212 firmware (< fw20)
• wago 750-8213 firmware (< fw20)
• wago 750-8214 firmware (< fw20)
• wago 750-8216 firmware (< fw20)
• wago 750-8217 firmware (< fw20)
• codesys codesys (< 1.1.9.22)
• codesys plcwinnt (< 2.4.7.56)
• codesys runtime toolkit (< 2.4.7.56)
Related
Weakness · CWE (1)
- CWE-824 Access of Uninitialized Pointer weakness