CVE-2021-34585

CWE-252 — Unchecked Return ValueCWE-7543 documents3 sources
Severity
7.5HIGH
EPSS
0.5%
top 35.50%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
29
Codesys Codesys V2Codesys CodesysWago 750-8202 Firmware+26 more
Timeline
PublishedOct 26
Latest updateMay 24

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages29 packages

▶NVDcodesys/codesys< 1.1.9.22
▶CVEListV5codesys/codesys_v2all web servers — V1.1.9.22

🔴Vulnerability Details

2
GHSA
GHSA-rhmm-fwg9-r5m5: In the CODESYS V2 web server prior to V1↗2022-05-24
▶
CVEList
CODESYS V2 web server: crafted requests could trigger a pointer dereference with an invalid address (DoS)↗2021-10-26
▶
CVE-2021-34585 (HIGH CVSS 7.5) | In the CODESYS V2 web server prior | cvebase.io