7.5

CVE-2021-34585

Exploit

In the CODESYS V2 web server prior to V1.1.9.22 crafted web server requests can trigger a parser error. Since the parser result is not checked under all conditions, a pointer dereference with an invalid address can occur. This leads to a denial of service situation.

Data is provided by the National Vulnerability Database (NVD)
Wago ≫ 750-823 Firmware Version < fw10
   Wago ≫ 750-823 Version-
Wago ≫ 750-829 Firmware Version < fw17
   Wago ≫ 750-829 Version-
Wago ≫ 750-831 Firmware Version < fw17
   Wago ≫ 750-831 Version-
Wago ≫ 750-832 Firmware Version < fw10
   Wago ≫ 750-832 Version-
Wago ≫ 750-852 Firmware Version < fw17
   Wago ≫ 750-852 Version-
Wago ≫ 750-862 Firmware Version < fw10
   Wago ≫ 750-862 Version-
Wago ≫ 750-880 Firmware Version < fw17
   Wago ≫ 750-880 Version-
Wago ≫ 750-881 Firmware Version < fw17
   Wago ≫ 750-881 Version-
Wago ≫ 750-882 Firmware Version < fw17
   Wago ≫ 750-882 Version-
Wago ≫ 750-885 Firmware Version < fw17
   Wago ≫ 750-885 Version-
Wago ≫ 750-889 Firmware Version < fw17
   Wago ≫ 750-889 Version-
Wago ≫ 750-890 Firmware Version < fw10
   Wago ≫ 750-890 Version-
Wago ≫ 750-891 Firmware Version < fw10
   Wago ≫ 750-891 Version-
Wago ≫ 750-893 Firmware Version < fw10
   Wago ≫ 750-893 Version-
Wago ≫ 750-8202 Firmware Version < fw20
   Wago ≫ 750-8202 Version-
Wago ≫ 750-8203 Firmware Version < fw20
   Wago ≫ 750-8203 Version-
Wago ≫ 750-8204 Firmware Version < fw20
   Wago ≫ 750-8204 Version-
Wago ≫ 750-8206 Firmware Version < fw20
   Wago ≫ 750-8206 Version-
Wago ≫ 750-8207 Firmware Version < fw20
   Wago ≫ 750-8207 Version-
Wago ≫ 750-8208 Firmware Version < fw20
   Wago ≫ 750-8208 Version-
Wago ≫ 750-8210 Firmware Version < fw20
   Wago ≫ 750-8210 Version-
Wago ≫ 750-8211 Firmware Version < fw20
   Wago ≫ 750-8211 Version-
Wago ≫ 750-8212 Firmware Version < fw20
   Wago ≫ 750-8212 Version-
Wago ≫ 750-8213 Firmware Version < fw20
   Wago ≫ 750-8213 Version-
Wago ≫ 750-8214 Firmware Version < fw20
   Wago ≫ 750-8214 Version-
Wago ≫ 750-8216 Firmware Version < fw20
   Wago ≫ 750-8216 Version-
Wago ≫ 750-8217 Firmware Version < fw20
   Wago ≫ 750-8217 Version-
Codesys ≫ Codesys Version < 1.1.9.22
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 0.47% 0.616
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 5 10 2.9
AV:N/AC:L/Au:N/C:N/I:N/A:P
nvd@nist.gov 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
info@cert.vde.com 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-252 Unchecked Return Value

The product does not check the return value from a method or function, which can prevent it from detecting unexpected states and conditions.