CVE-2021-1067

Privilege escalation via RPMB configuration-block writes

Published Jan 20, 2021 · Updated Aug 3, 2024

RPMB command-status flaw in NVIDIA SHIELD TV before 8.2.2 allows physically proximate attackers to disrupt service or gain privileges. The RPMB command-status implementation permits writes to the Write Protect Configuration Block instead of preserving its protected configuration. Physical access is required; successful manipulation can interrupt the device or elevate privileges, while NVIDIA has not published lower-level code details.

CVSS severity5.7
Medium
EPSS probability0.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

RPMB command-status flaw in NVIDIA SHIELD TV before 8.2.2 allows physically proximate attackers to disrupt service or gain privileges. The RPMB command-status implementation permits writes to the Write Protect Configuration Block instead of preserving its protected configuration. Physical access is required; successful manipulation can interrupt the device or elevate privileges, while NVIDIA has not published lower-level code details.

The record

CVE
CVE-2021-1067
Published
Jan 20, 2021
Updated
Aug 3, 2024
Vendor
NVIDIA
Product
NVIDIA SHIELD TV
Classifications
T1068
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 20, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=All versions prior to 8.2.2

What conditions does exploitation require?

Attack vectorphysical
Required privilegesunauthenticated

What is affected?

NVIDIA · NVIDIA SHIELD TVversion=All versions prior to 8.2.2

Published CVSS scores

4.6NIST NVDAV:L/AC:L/Au:N/C:P/I:P/A:P
6.8NIST NVDCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
5.7NVIDIACVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorphysical
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo