CVE-2026-42468
Analyzed Analyzed - Analysis Complete
Buffer Overflow in Open Vehicle Monitoring System 3

Publication date: 2026-05-01

Last updated on: 2026-05-20

Assigner: MITRE

Description
Buffer overflow vulnerability in Open Vehicle Monitoring System 3 (OVMS3) 3.3.005. In canformat_pcap.cpp , the parser's phdr.len field is not properly validated, allowing remote attackers to cause a denial of service or possibly execute arbitrary code via crafted PCAP input.
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Meta Information
Published
2026-05-01
Last Modified
2026-05-20
Generated
2026-06-16
AI Q&A
2026-05-01
EPSS Evaluated
2026-06-15
NVD
CVE-2026-42468
EUVD
EUVD-2026-26696
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
openvehicles open_vehicle_monitoring_system_firmware 3.3.005
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
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).
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Executive Summary

This vulnerability is a buffer overflow in the Open Vehicle Monitoring System 3 (OVMS3) version 3.3.005. Specifically, in the canformat_pcap.cpp file, the parser's phdr.len field is not properly validated. This improper validation allows remote attackers to exploit crafted PCAP input to cause a denial of service or potentially execute arbitrary code.

Impact Analysis

The impact of this vulnerability includes the possibility for remote attackers to cause a denial of service, which could disrupt the normal operation of the Open Vehicle Monitoring System. Additionally, there is a risk that attackers could execute arbitrary code, potentially gaining control over the affected system or causing further damage.

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