CVE-2023-48010
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 · uneditedSTMicroelectronics SPC58 is vulnerable to Missing Protection Mechanism for Alternate Hardware Interface. Code running as Supervisor on the SPC58 PowerPC microcontrollers may disable the System Memory Protection Unit and gain unabridged read/write access to protected assets.
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 confidenceSTMicroelectronics SPC58 PowerPC microcontrollers have a missing protection mechanism that allows supervisor-level code to disable the System Memory Protection Unit (SMPU), thereby gaining unrestricted read/write access to memory regions that should be protected.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS 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
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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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Identify the microcontroller modelInspect the device hardware markings, firmware identification strings, or boot logs to confirm the chip is an STMicroelectronics SPC58 PowerPC microcontrollerAffected if The device does not use an SPC58 PowerPC chip, the vulnerability does not apply
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Determine the firmware versionRead the firmware version from the device bootloader output, debug interface, or firmware image metadata; compare against any vendor release notesAffected if The installed firmware version is older than the patched version if released by STMicroelectronics
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Verify SMPU is present and enabledCheck the microcontroller configuration registers or memory protection unit settings via debug/JTAG interface or firmware documentation to confirm the System Memory Protection Unit is enabledAffected if SMPU is disabled or not present, the specific bypass does not apply but the device may have other protection gaps
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Check for SMPU disable protection mechanismInspect the SMPU configuration or privilege mode settings to determine if supervisor-level code is prevented from disabling SMPU protections; look for read-only or locked SMPU control bits in the architecture documentationAffected if Supervisor-level code can freely disable SMPU without restriction, indicating the vulnerability is present
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Review memory region protection configurationsExamine the configured memory regions and their access permissions in the SMPU or MPU settings to verify which regions are supposed to be protectedAffected if Protected memory regions can be overwritten by supervisor code after disabling SMPU
The environment is affected if the device is an SPC58 PowerPC microcontroller with SMPU present and supervisor-level code can disable SMPU protections to access protected memory regions.
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 dataApply vendor-supplied firmware updates from STMicroelectronics that address the SMPU bypass; until patches are available, implement compensating controls such as code review policies and runtime monitoring to restrict supervisor-level code execution.
- 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-2023-48010 — 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-2023-48010 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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