SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2021-30191

CODESYS V2 Web-Server before 1.1.9.20 has a a Buffer Copy without Checking the Size of the Input.

HIGH 7.5EPSS 1.02%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (1.02%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

CODESYS V2 Web-Server before 1.1.9.20 has a a Buffer Copy without Checking the Size of the Input.

CVSS 3.1
7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
1.02% probability · 61th percentile
CISA KEV
Not listed
Weakness
CWE-120
Affected
wago/750-893 firmware · wago/750-891 firmware · wago/750-890 firmware · wago/750-889 firmware · wago/750-885 firmware · wago/750-882 firmware · wago/750-881 firmware · wago/750-880 firmware · wago/750-862 firmware · wago/750-852 firmware · wago/750-832 firmware · wago/750-831 firmware · wago/750-829 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 · wago/750-8210 firmware · +8 more
Source
cve@mitre.org

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