Parallaxis Cuckoo Clock 5.0 stack-based overflow

Summaryinfo

A vulnerability marked as critical has been reported in Parallaxis Cuckoo Clock 5.0. Affected by this vulnerability is an unknown functionality. Performing a manipulation results in stack-based overflow. This vulnerability is reported as CVE-2020-37159. The attack requires a local approach. Moreover, an exploit is present.

Detailsinfo

A vulnerability classified as critical has been found in Parallaxis Cuckoo Clock 5.0. This affects an unknown code. The manipulation with an unknown input leads to a stack-based overflow vulnerability. CWE is classifying the issue as CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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.

The weakness was disclosed by boku as 48087. The advisory is shared at exploit-db.com. This vulnerability is uniquely identified as CVE-2020-37159 since 02/03/2026. The exploitability is told to be easy. An attack has to be approached locally. Technical details are unknown but a public exploit is available.

The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Exploit-DB (48087). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

• Parallaxis

Name

• Cuckoo Clock

Version

• 5.0

CPE 2.3info

• 🔒

CPE 2.2info

• 🔒

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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