CVE-2023-28386
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
02 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
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.41% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 35.9% of scored records. A rank, not a probability.
- NVD base score
- 9.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2023-05-22 19:35Z3 YR AGO
- Last updated
- 2025-01-16 21:33Z1 YR AGO
- Reserved
- 2023-04-26
- Assigning CNA
- icscert
- Record state
- PUBLISHED
- Severity
- High (CVSS 8.6)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
- Weaknesses
- Data version
- 5.1
- Document digest
- fae5e82b0fd993d066677f4dc0af09cf75442dad11f49e6f567da9dc3f294bd2
05 Affected products
06 References
07 Remediation
Snap One has released the following updates/fixes for the affected products: * OvrC Pro v7.2 has been automatically pushed out to devices to update via OvrC cloud. * OvrC Pro v7.3 has been automatically pushed out to devices to update via OvrC cloud. * Disable UPnP. For more information, see Snap One’s Release Notes https://www.control4.com/docs/product/ovrc-software/release-notes/english/latest/ovrc-software-release-notes-rev-p.pdf .