Buffer overflow in Siemens products - CVE-2023-50821
Published: April 11, 2024
Vulnerability identifier: #VU88481
CSH Severity: Low
CVSS v4: 6.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-50821
CWE-ID: CWE-119
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error in the login dialog box. A local attacker can trigger memory corruption and cause a denial of service condition on the target system.
Affected software
Siemens SIMATIC WinCC
SIMATIC PCS 7
SIMATIC WinCC Runtime Professional
SIMATIC PCS 7
SIMATIC WinCC Runtime Professional
How to mitigate CVE-2023-50821
Install updates from vendor's website.
Siemens SIMATIC WinCC - update to 7.5 SP2 Update 16
SIMATIC PCS 7 - update to 9.1 SP2 UC04
SIMATIC PCS 7 - update to 9.1 SP2 UC04