CVE-2024-20066
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 · uneditedIn modem, there is a possible out of bounds write due to an incorrect bounds check. This could lead to remote denial of service with no additional execution privileges needed. User interaction is no needed for exploitation. Patch ID: MOLY01267281; Issue ID: MSV-1477.
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 confidenceThis is an out-of-bounds write vulnerability in a modem component caused by incorrect bounds checking. It can be exploited remotely to cause a denial of service without requiring any privileges or user interaction.
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
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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 modem chipsetCheck device specifications or system information to determine if the device contains a Mediatek Nr16 or Nr17 modem component. This may be listed in hardware specs, FCC filings, or device diagnostics.Affected if Device does not contain a Mediatek Nr16 or Nr17 modem, then this CVE does not apply
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Locate modem firmware versionAccess the modem firmware information through device diagnostics, engineering mode, or by querying the modem component directly. The method varies by device manufacturer - check settings, about phone, or use diagnostic tools provided by the carrier or manufacturer.Affected if Unable to determine modem firmware version, assume potentially affected
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Check if vendor patch is appliedQuery the modem for the installed patch level or firmware build. Look for patch identifier MOLY01267281 or subsequent firmware updates from the device manufacturer or carrier that address the bounds checking issue.Affected if Patch MOLY01267281 or later firmware update addressing this vulnerability has not been applied
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Review carrier or manufacturer firmware release notesCheck with the device manufacturer or mobile carrier for firmware release notes mentioning CVE-2024-20066 or the bounds check fix in the modem component.Affected if No firmware update addressing this CVE has been released or applied
Device is affected if it contains a Mediatek Nr16 or Nr17 modem and the vendor patch (MOLY01267281) or corresponding firmware update has not been applied.
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 the vendor patch (MOLY01267281) to fix the incorrect bounds check in the modem firmware; contact the device manufacturer or carrier for firmware updates.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 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 $6,176.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-20066 — 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-2024-20066 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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