CVE-2023-32846
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 5G Modem, there is a possible system crash due to improper error handling. This could lead to remote denial of service when receiving malformed RRC messages, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY01128524; Issue ID: MOLY01138453 (MSV-861).
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 a remote denial of service vulnerability in 5G modem firmware where improper error handling when processing malformed Radio Resource Control (RRC) messages causes a system crash. The attack is exploitable remotely without requiring any user interaction or additional privileges.
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 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 Mediatek 5G modem modelQuery the modem or device firmware for the chipset model identifier, looking for 'Nr15', 'Nr16', or 'Nr17' in the modem hardware information or AT command responseAffected if The device contains a Mediatek Nr15, Nr16, or Nr17 5G modem chipset
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Retrieve modem firmware versionUse AT commands such as 'AT+CGMR' or vendor-specific commands to query the 5G modem firmware versionAffected if The returned firmware version is earlier than MOLY01128524 or cannot be determined
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Confirm 5G RRC message processing is activeVerify the modem is configured to process RRC (Radio Resource Control) messages, which is default behavior for any active 5G connectionAffected if The modem has an active 5G connection or is configured to accept RRC messages from the network
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Check vendor patch levelCompare the installed firmware version against the patched version MOLY01128524 using the modem's firmware information command or device management interfaceAffected if The installed version is any version prior to MOLY01128524, since all versions of Nr15/Nr16/Nr17 are affected
A user is affected if their device uses a Mediatek Nr15, Nr16, or Nr17 5G modem with firmware version earlier than MOLY01128524 and has 5G connectivity enabled.
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 patch MOLY01128524 to update the affected 5G modem firmware. This is a firmware-level fix that must be deployed to the affected modem devices.
- Consultation4.0 h
- Implementation8.0 h
- Testing12.0 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 $7,616.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-32846 — 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-2023-32846 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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