AndroidOperating system · Google

CVE-2025-61617

HIGH · 7.5 CVSS v3.1 Published 2025-12-01
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
84/100
Remediation priority · High
Remotely reachable No privileges 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
In nr modem, there is a possible system crash due to improper input validation. This could lead to remote denial of service with no additional execution privileges needed

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

A remote denial of service vulnerability exists in 5G NR (New Radio) modem components due to improper input validation. An attacker can send specially crafted inputs to the modem that trigger a system crash, causing the device to become unresponsive without requiring any elevated privileges.

MitigationImplement proper input validation on all data paths entering the modem component, including boundary checks, type validation, and length verification. Apply vendor-supplied firmware/security updates for the affected modem when available.

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
AndroidOperating system
Affected:= 13.0= 14.0= 15.0= 16.0

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
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 checks

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

  1. Identify the Android version
    Check the device Settings > About Phone > Android version to confirm the exact installed version
    Affected if The installed version matches 13.0, 14.0, 15.0, or 16.0 exactly
  2. Determine if the device has 5G NR modem capability
    Check the device specifications or modem firmware details to verify if the hardware includes 5G NR (New Radio) modem support
    Affected if The device contains a 5G NR modem component
  3. Verify if 5G connectivity is enabled
    Inspect the device network settings under Settings > Network & Internet > Mobile Network to see if 5G or 5G NR is turned on
    Affected if 5G NR is enabled and active on the device
  4. Confirm modem accessibility
    Check whether the modem component can receive external inputs, typically through mobile network interfaces or diagnostic ports
    Affected if The modem can accept network inputs from cellular connections

A device is affected if it runs Android 13.0, 14.0, 15.0, or 16.0 and contains an active 5G NR modem component that can receive external inputs.

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.

dbcve · scoped
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Implement proper input validation on all data paths entering the modem component, including boundary checks, type validation, and length verification. Apply vendor-supplied firmware/security updates for the affected modem when available.

Recommended fix Moderate confidence
  1. Contact Unisoc (www.unisoc.com) to obtain the modem firmware patch for the nr modem improper input validation vulnerability
  2. Apply the Unisoc modem firmware patch to the affected device through the OEM's standard update mechanism
  3. Device OEMs must integrate the Unisoc modem patch into their Android system updates for versions 13.0, 14.0, 15.0, and 16.0
  4. Users should apply the resulting OEM/Carrier Android security update that includes the Unisoc modem fix
  5. Verify the patch has been applied by checking the baseband/modem firmware version with the OEM or through device settings

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Android Scoped from the published advisory
  • Consultation6.0 h
  • Implementation12.0 h
  • Testing8.0 h
  • Review / QA4.0 h
30.0 hours of engineering $5,280
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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-2025-61617 in production — separate from our analysis above.

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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
  • 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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