Description
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.
Scores
CVSS v3
7.5
EPSS
0.0047
EPSS Percentile
64.6%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-252
Status
published
Products (28)
codesys/codesys
< 1.1.9.22
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
... and 18 more
Published
Oct 26, 2021
Tracked Since
Feb 18, 2026