CVE-2021-34583

CWE-122 — Heap-based Buffer OverflowCWE-787 — Out-of-bounds Write3 documents3 sources
Severity
7.5HIGH
EPSS
0.7%
top 28.14%
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 may cause a heap-based buffer overflow and could therefore 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: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-rx79-rgx5-5gqx: Crafted web server requests may cause a heap-based buffer overflow and could therefore trigger a denial-of- service condition due to a crash in the CO↗2022-05-24
▶
CVEList
CODESYS V2 web server: crafted requests could trigger a heap-based buffer overflow (DoS)↗2021-10-26
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CVE-2021-34583 (HIGH CVSS 7.5) | Crafted web server requests may cau | cvebase.io