CVE-2021-34595

CWE-823CWE-119 — Buffer Overflow3 documents3 sources
Severity
8.1HIGH
EPSS
0.4%
top 41.02%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
31
Codesys Codesys V2Codesys CodesysCodesys Plcwinnt+28 more
Timeline
PublishedOct 26
Latest updateMay 24

Description

A crafted request with invalid offsets may cause an out-of-bounds read or write access in CODESYS V2 Runtime Toolkit 32 Bit full and PLCWinNT prior to versions V2.4.7.56, resulting in a denial-of-service condition or local memory overwrite.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:HExploitability: 2.8 | Impact: 5.2

Affected Packages31 packages

▶NVDcodesys/runtime_toolkit< 2.4.7.56
▶NVDcodesys/plcwinnt< 2.4.7.56
▶NVDcodesys/codesys< 1.1.9.22
▶CVEListV5codesys/codesys_v2Runtime Toolkit 32 bit full — V2.4.7.56+1

🔴Vulnerability Details

2
GHSA
GHSA-r36w-qc6c-g892: A crafted request with invalid offsets may cause an out-of-bounds read or write access in CODESYS V2 Runtime Toolkit 32 Bit full and PLCWinNT prior to↗2022-05-24
▶
CVEList
CODESYS V2 runtime: out-of-bounds read or write access may result in denial-of-service↗2021-10-26
▶
CVE-2021-34595 (HIGH CVSS 8.1) | A crafted request with invalid offs | cvebase.io