7.5
High
CVE-2021-34583 Crafted web server requests may cause a heap-based buffer overflow and could therefore trigger a denial-of- service…
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.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| CODESYS V2 1.1 | earliest → < 1.1.9.22 | 1.1.9.22 |
Other CVEs of CODESYS V2
The 7 CVEs of CODESYS V2 →
CVE-2021-34596
A crafted request may cause a read access to an uninitialized pointer in CODESYS V2 Runtime Toolkit 32 Bit full and…
6.5
Medium
CVE-2021-34595
A crafted request with invalid offsets may cause an out-of-bounds read or write access in CODESYS V2 Runtime Toolkit…
8.1
High
CVE-2021-34593
In CODESYS V2 Runtime Toolkit 32 Bit full and PLCWinNT prior to versions V2.4.7.56 unauthenticated crafted invalid…
7.5
High
CVE-2021-34586
In the CODESYS V2 web server prior to V1.1.9.22 crafted web server requests may cause a Null pointer dereference in…
7.5
High