Stack-based buffer overflow in QNAP Systems, Inc. products - CVE-2021-38691
Published: January 14, 2022
Vulnerability identifier: #VU59599
CSH Severity: High
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-38691
CWE-ID: CWE-121
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error. A remote attacker can trigger stack-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
QVR Pro
QVR Guard
QVR Elite
QVR Guard
QVR Elite
How to mitigate CVE-2021-38691
Install updates from vendor's website.
QVR Pro - update to 2.1.3.0
QVR Guard - update to 2.1.3.0
QVR Elite - update to 2.1.4.0
QVR Guard - update to 2.1.3.0
QVR Elite - update to 2.1.4.0