CVE-2024-45550
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 · uneditedMemory corruption occurs when invoking any IOCTL-calling application that executes all MCDM driver IOCTL calls.
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 confidenceA memory corruption vulnerability exists in the MCDM driver where any IOCTL-calling application can trigger corruption when executing driver IOCTL calls. This indicates improper memory handling in the driver's IOCTL handler, likely lacking adequate bounds checking or input validation on IOCTL input/output buffers.
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 versionsall versionsall versionsall versionsall versionsall 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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:L/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 MCDM driver presenceCheck for the MCDM driver in the system driver list or loaded modules. On Windows, use 'driverquery' or check System32/drivers. On Linux, check 'lsmod' or /proc/modules for mcdm or similar driver names.Affected if The MCDM driver is loaded or present on the system.
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Detect Qualcomm firmware componentsUse system information tools (like 'msinfo32', 'dmidecode', or vendor-specific tools) to check for Qualcomm components: Fastconnect 6900/7800, Wcd9380/9385, Wsa8840/8845/8845h, or Sc8380xp wireless or audio firmware modules.Affected if Any of the listed Qualcomm firmware components (Fastconnect, Wcd, Wsa, Sc8380xp) are present on the system.
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Check IOCTL interface accessibilityIdentify if applications can send IOCTL requests to the MCDM driver. This may involve checking driver permissions, ACLs, or monitoring tool access to the driver's device interface.Affected if The MCDM driver exposes an IOCTL interface that is accessible to applications on the system.
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Review driver version and buildIf the MCDM driver is visible, attempt to retrieve its version information through driver properties or system management tools to confirm the specific driver in use.Affected if A specific driver version can be determined for confirmation purposes.
The system is affected if it contains any of the listed Qualcomm firmware components (Fastconnect 6900/7800, Wcd9380/9385, Wsa8840/8845/8845h, Sc8380xp) and the MCDM driver with accessible IOCTL interface is present, since all versions of these firmware components are vulnerable.
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 dataUpdate or patch the MCDM driver to a version that properly validates and sanitizes all IOCTL request parameters and implements safe memory management practices. If no patch is available, restrict or monitor applications that can send IOCTL requests to the affected driver.
- Consultation6.0 h
- Implementation12.0 h
- Testing8.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-45550 — 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-2024-45550 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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- 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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