SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2021-34596

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.

MEDIUM 6.5EPSS 0.85%

Does this matter?

Lower severity and a low EPSS score (0.85%). Track it; it rarely justifies an emergency change on its own.

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.

CVSS 3.1
6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS
0.85% probability · 56th percentile
CISA KEV
Not listed
Weakness
CWE-824
Affected
wago/750-823 firmware · wago/750-829 firmware · wago/750-831 firmware · wago/750-832 firmware · wago/750-852 firmware · wago/750-862 firmware · wago/750-880 firmware · wago/750-881 firmware · wago/750-882 firmware · wago/750-885 firmware · wago/750-889 firmware · wago/750-890 firmware · wago/750-891 firmware · wago/750-893 firmware · wago/750-8202 firmware · wago/750-8203 firmware · wago/750-8204 firmware · wago/750-8206 firmware · wago/750-8207 firmware · wago/750-8208 firmware · +10 more
Source
info@cert.vde.com

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.