PT-2026-40622 · Drive · Atomic Alarm Clock

Bobby Cooke · CVE-2020-37221 · Published 2026-05-13 · Updated 2026-05-13

Mitre

CVSS v3.1

8.4

High

Base vector

AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

Exploit

Fix

Stack Overflow

Weakness Enumeration

CWE-121

Related Identifiers

CVE-2020-37221

Affected Products

Atomic Alarm Clock

References · 3

• 🔥 https://exploit-db.com/exploits/48346 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2020-37221 · Security Note
• https://vulncheck.com/advisories/atomic-alarm-clock-stack-overflow-via-seh-unicode · Note