CVE-2020-37159
Critical
Description
Parallaxis Cuckoo Clock 5.0 contains a buffer overflow vulnerability that allows attackers to execute arbitrary code by overwriting memory registers in the alarm scheduling feature. Attackers can craft a malicious payload exceeding 260 bytes to overwrite EIP and EBP, enabling shellcode execution with potential remote code execution.
SeverityCritical
CVSS9.8
Exploit probability53. percentile0.7%
ProductCuckoo Clock
PublishedFeb 7, 2026
First seenFeb 7, 2026
Weakness typeCWE-121CWE-121
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Parallaxis Cuckoo Clock | 5.0 | — |
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