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Vulnerability record · CVE-2020-37159 · published 7 February 2026

CVE-2020-37159: Stack-based buffer overflow vulnerability

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.

8.4 CVSS 4.0 High EPSS 0.65% · top 50.7% CWE-121 · Stack-based buffer overflow Deferred
8.4CVSS 4.0 base score
0.65%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
17 Jun 2026Last modified by NVD

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.

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/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:

References

LinkTags
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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Source: NIST National Vulnerability Database (record CVE-2020-37159), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.