CVE-2020-37221
Atomic Alarm Clock 6.3 Stack Overflow via SEH Unicode
- State
- Published
- Severity
- 8.6 High
- Published
- May 13, 2026
- Updated
- May 13, 2026
- Reserved
- May 13, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.6 High | 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 | VulnCheck |
| 3.1 | 8.4 High | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | VulnCheck |
Weaknesses
- CWE-121 Stack-based Buffer Overflow
Affected Products
| Product | Versions |
|---|---|
Atomic Alarm ClockDrive-software |
|
References
- ExploitDB-48346exploit
- VulnCheck Advisory: Atomic Alarm Clock 6.3 Stack Overflow via SEH Unicodethird-party-advisory
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