CVE-2023-28386

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-05-22 · updated 2026-06-17
Weakness: CWE-354

Description

Snap One OvrC Pro devices versions 7.2 and prior do not validate firmware updates correctly. The device only calculates the MD5 hash of the firmware and does not check using a private-public key mechanism. The lack of complete PKI system firmware signature could allow attackers to upload arbitrary firmware updates, resulting in code execution.

Affected products

Snapone Orvc: before 7.3.0 — fixed in 7.3.0

How to fix

Upgrade to a fixed version: Snapone Orvc 7.3.0. Check the vendor advisory for mitigations.

References

https://www.cisa.gov/news-events/ics-advisories/icsa-23-136-01
https://www.control4.com/docs/product/ovrc-software/release-notes/english/latest/ovrc-software-release-notes-rev-p.pdf
https://www.cisa.gov/news-events/ics-advisories/icsa-23-136-01
https://www.control4.com/docs/product/ovrc-software/release-notes/english/latest/ovrc-software-release-notes-rev-p.pdf

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