What’s Vulnerable › Vulnerabilities

CVE-2020-37159: Cuckoo Clock 5.0 - Buffer Overflow

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-02-07 · updated 2026-06-17
• Weakness: CWE-121

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.

Affected products

• Parallaxis Cuckoo Clock: 5.0

References

• https://en.softonic.com/author/pxcompany
• https://www.exploit-db.com/exploits/48087
• https://www.vulncheck.com/advisories/cuckoo-clock-buffer-overflow

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