315 5g Iot Modem FirmwareOperating system · Qualcomm

CVE-2023-24852

HIGH · 7.8 CVSS v3.1 Published 2023-11-07
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
80/100
Remediation priority · High
Zero-click

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 · unedited
Memory Corruption in Core due to secure memory access by user while loading modem image.

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 confidence

Memory corruption vulnerability in the Core (likely baseband/modem processor) allows a local user to improperly access secure memory during the modem image loading process, potentially leading to code execution or privilege escalation within the secure domain.

MitigationApply vendor-provided firmware/security updates for affected devices. Until patch is available, restrict user access to modem image loading mechanisms and monitor for unauthorized firmware modifications.

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 data
315 5g Iot Modem FirmwareOperating system
Affected:all versions
9205 Lte Modem FirmwareOperating system
Affected:all versions
Aqt1000 FirmwareOperating system
Affected:all versions
Ar8031 FirmwareOperating system
Affected:all versions
Ar8035 FirmwareOperating system
Affected:all versions
C V2x 9150 FirmwareOperating system
Affected:all versions
Csr8811 FirmwareOperating system
Affected:all versions
Csra6620 FirmwareOperating system
Affected:all versions

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
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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify affected Qualcomm modem hardware
    Inventory network devices, IoT equipment, or embedded systems for Qualcomm 315 5G, 9205 LTE, Aqt1000, Ar8031, Ar8035, C-V2X 9150, Csr8811, or Csra6620 modems or modules. Check device labels, SNMP inventory, or hardware specifications.
    Affected if Any of these specific Qualcomm modem models or chipsets are present in the environment
  2. Check modem firmware version
    Access the modem management interface (AT commands, debug serial, OEM management portal) and query the firmware version using vendor-specific commands (e.g., AT+CGMR, ATI, or platform-specific diagnostic tools).
    Affected if Firmware version cannot be determined or is confirmed to be any version of the listed products
  3. Verify modem image loading interface exposure
    Review network access controls, debug port exposure, and management interface configurations. Check if modem firmware update/loading interfaces (JTAG, debug serial, OEM diagnostic ports, or network-based firmware update services) are accessible to local users or network attackers.
    Affected if Modem image loading or firmware update mechanisms are exposed to untrusted local users or network access
  4. Check for unauthorized firmware modifications
    Compare current modem firmware hash or version against known-good baseline from vendor documentation. Look for unexpected firmware images, unauthorized flashing attempts in system logs, or unknown firmware signatures.
    Affected if Firmware hash differs from vendor baseline or unauthorized modification indicators are present
  5. Audit user access to modem subsystems
    Review logs and access controls for modem core/baseband processor interfaces. Check if local user accounts or debugging tools have access to secure memory regions or modem image loading functions.
    Affected if Local users have elevated access to modem core functions or secure memory regions

If any Qualcomm 315/9205-series or listed modem firmware is present and the modem image loading mechanism is accessible to local users, the environment is likely affected by this vulnerability.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply vendor-provided firmware/security updates for affected devices. Until patch is available, restrict user access to modem image loading mechanisms and monitor for unauthorized firmware modifications.

Fix this in 315 5g Iot Modem Firmware Scoped from the published advisory
  • Consultation4.0 h
  • Testing8.0 h
  • Review / QA4.0 h
16.0 hours of engineering $2,720
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Scan for this in your stack

Free · runs locally
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2023-24852 in production — separate from our analysis above.

No notes yet

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What this is

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.

What belongs here
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  • Version or environment caveats, and links to real fixes
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