CVE-2022-27152
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedRoku devices running RokuOS v9.4.0 build 4200 or earlier that uses a Realtek WiFi chip is vulnerable to Arbitrary file modification.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceRoku devices running RokuOS v9.4.0 build 4200 or earlier that use Realtek WiFi chips contain a vulnerability allowing arbitrary file modification, likely due to improper input validation or privilege escalation in the WiFi chip firmware interface.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data<= 9.4.0CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Adjacent
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- High
- Availability
- None
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Check RokuOS versionGo to Settings > System > System update on the Roku device, or check the on-screen display showing the current OS build numberAffected if The displayed RokuOS version is 9.4.0 or earlier, or the build number is 4200 or lower
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Verify WiFi chip manufacturerCheck the device hardware specifications or FCC filing documentation for the specific Roku model to identify the WiFi chipset manufacturerAffected if The device uses a Realtek WiFi chip, as the vulnerability exists in the Realtek WiFi chip firmware interface
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Confirm network exposureReview network configuration to determine if the Roku device is on the same network segment as untrusted devicesAffected if The device is accessible from network segments with untrusted or guest devices, as the vulnerability could be exploited remotely via network access
A Roku device is affected if it runs RokuOS version 9.4.0 build 4200 or earlier and contains a Realtek WiFi chipset, with the vulnerability exploitable through network access to the device.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scopedUpdate RokuOS to a version newer than v9.4.0 build 4200 to patch the vulnerability; if updates are unavailable, consider network segmentation to limit exposure to potential attackers.
Roku OS version greater than 9.4.0 (check roku.com/support for the latest available version)
- Check your current Roku OS version by navigating to Settings > System > About > Version
- If your version is 9.4.0 build 4200 or earlier, initiate a system update by going to Settings > System > System update
- Alternatively, you can manually check for updates at roku.com/support or through the Roku mobile app
- After updating, verify the new OS version is above 9.4.0 to confirm the vulnerability is addressed
- If automatic updates are enabled, ensure your device is connected to the internet to receive the latest OS version
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation1.0 h
- Testing2.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-27152 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2022-27152 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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