Buffer overflow in Siemens products - CVE-2021-33737
Published: September 15, 2021
Vulnerability identifier: #VU56625
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-33737
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error. A remote attacker can send a specially crafted packet, trigger memory corruption and cause a denial of service condition on the target system.
Affected software
SIMATIC CP 343-1 Advanced
SIMATIC CP 343-1 Standard
SIMATIC CP 343-1 ERPC
SIMATIC CP 343-1 LEAN
SIMATIC CP 343-1 Standard
SIMATIC CP 343-1 ERPC
SIMATIC CP 343-1 LEAN
How to mitigate CVE-2021-33737
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.