CVE-2020-37221
HIGH EPSS 4.8%
Published May 13, 20261mo ago · Modified Jun 17, 20262w ago
8.6 CVSS 4.0
Published May 13, 2026 1mo ago
Last Modified Jun 17, 2026 2w ago
Description
Atomic Alarm Clock 6.3 contains a stack overflow vulnerability that allows local attackers to execute arbitrary code by supplying a malicious string to the display name textbox in the Time Zones Clock configuration. Attackers can craft a buffer with structured exception handling overwrite and encoded shellcode to bypass SafeSEH protections and execute arbitrary commands with application privileges.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Attack Vector Local
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X
Threat Intelligence
EPSS Exploit Probability
4.8% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-121
References 2
- exploit-db.com https://www.exploit-db.com/exploits/48346
- vulncheck.com https://www.vulncheck.com/advisories/atomic-alarm-clock-stack-overflow-via-seh-unicode
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.