CyberRota Analysis
This is a medium severity vulnerability with a CVSS score of 4.6. Public exploit code or proof-of-concept references have been detected in its references.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
GitHub PoC Links
Note: these links are listed for security research and verification purposes only.
CVE
CVE-2021-34557
Severity
MEDIUM
CVSS
4.6
EPSS
0.48%
Original NVD Description
XScreenSaver 5.45 can be bypassed if the machine has more than ten disconnectable video outputs. A buffer overflow in update_screen_layout() allows an attacker to bypass the standard screen lock authentication mechanism by crashing XScreenSaver. The attacker must physically disconnect many video outputs.
Related CVEs
Other vulnerabilities affecting the same vendor(s)