CVE-2022-27813
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 · uneditedMotorola MTM5000 series firmwares lack properly configured memory protection of pages shared between the OMAP-L138 ARM and DSP cores. The SoC provides two memory protection units, MPU1 and MPU2, to enforce the trust boundary between the two cores. Since both units are left unconfigured by the firmwares, an adversary with control over either core can trivially gain code execution on the other, by overwriting code located in shared RAM or DDR2 memory regions.
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 · high confidenceThe Motorola MTM5000 series firmware leaves both memory protection units (MPU1 and MPU2) on the OMAP-L138 SoC unconfigured, failing to enforce the trust boundary between the ARM and DSP cores. An attacker who compromises either core can write to shared RAM or DDR2 memory regions, enabling arbitrary code execution on the other core.
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 dataall versionsall versionsCVSS 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
- Local
- Complexity
- Low
- Privileges
- High
- User interaction
- None
- Scope
- Changed
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
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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Confirm device modelIdentify if the target device is a Motorola Mtm5500 or Mtm5400 unit by checking the device firmware identification, boot logs, or hardware labelingAffected if The device is not a Motorola Mtm5500 or Mtm5400 model
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Access OMAP-L138 SoC configurationObtain access to the device firmware image or runtime memory configuration for the OMAP-L138 SoC, typically through firmware extraction, debug interfaces, or memory dump procedures specific to the hardwareAffected if Unable to access the OMAP-L138 SoC configuration data
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Inspect MPU1 configurationExamine the Memory Protection Unit 1 (MPU1) registers or configuration settings within the OMAP-L138 SoC memory map to determine if memory protection boundaries between ARM and DSP cores are definedAffected if MPU1 registers show default/unconfigured state with no memory regions defined or access restrictions set between cores
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Inspect MPU2 configurationExamine the Memory Protection Unit 2 (MPU2) registers or configuration settings within the OMAP-L138 SoC memory map to determine if protection for shared RAM and DDR2 memory regions is configuredAffected if MPU2 registers show default/unconfigured state with no access control policies enforced for shared memory regions
The device is affected if it is a Motorola Mtm5500 or Mtm5400 unit where MPU1 and MPU2 remain in their default unconfigured state, allowing unrestricted write access to shared RAM or DDR2 memory from either the ARM or DSP core.
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.
From vendor dataConfigure MPU1 and MPU2 to enforce memory protection boundaries between the ARM and DSP cores, restricting write access to shared memory regions to only authorized code and establishing proper access control policies.
- Consultation4.0 h
- Implementation12.0 h
- Testing8.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $7,808.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-27813 — 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-2022-27813 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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- Version or environment caveats, and links to real fixes
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