CVE-2021-34584

CWE-126 — Buffer Over-read3 documents3 sources
Severity
9.1CRITICAL
EPSS
0.6%
top 30.34%
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

Crafted web server requests can be utilised to read partial stack or heap memory or may trigger a denial-of- service condition due to a crash in the CODESYS V2 web server prior to V1.1.9.22.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:HExploitability: 3.9 | Impact: 5.2

Affected Packages29 packages

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

🔴Vulnerability Details

2
GHSA
GHSA-j5c2-6xq9-fj5m: Crafted web server requests can be utilised to read partial stack or heap memory or may trigger a denial-of- service condition due to a crash in the C↗2022-05-24
▶
CVEList
CODESYS V2 web server: crafted requests could trigger a buffer over-read (DoS)↗2021-10-26
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CVE-2021-34584 (CRITICAL CVSS 9.1) | Crafted web server requests can be | cvebase.io