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High

Remote DoS in Unisoc NR Modem Input Validation

IdentifiersCVE-2025-11131CWE-20

CVE-2025-11131 is a vulnerability in the NR modem component in which improper input validation can cause a system crash. Based on the provided description, malformed or otherwise invalid input reaching the modem can trigger a failure condition that propagates to a device-level crash or denial-of-service state. The issue is described as remotely triggerable and does not require additional execution privileges, indicating the vulnerable attack surface is exposed through modem-handled network input rather than a privileged local interface.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation can cause a remote denial of service by crashing the affected system or destabilizing modem-related functionality. The primary impact described is loss of availability; no evidence was provided that the flaw enables code execution, privilege escalation, or information disclosure.

Mitigation

If you can’t patch tonight, do this now.

Until patched firmware is deployed, reduce exposure by limiting attack paths to the modem where operationally possible, including minimizing unnecessary radio/network exposure and prioritizing updates on internet-exposed or high-risk devices. In enterprise environments, accelerate deployment of the relevant Android/vendor patch level and track OEM availability of Unisoc-specific fixes. No specific configuration workaround was provided in the supplied content.

Remediation

Patch, then assume compromise.

Apply the vendor/OEM security update that includes the fix for CVE-2025-11131, as referenced in the December 2025 Android security updates and associated Unisoc component patches. Because this affects a vendor modem component, remediation depends on integrating and deploying the relevant firmware/baseband update from the device manufacturer or chipset vendor.
PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType
GoogleAndroidoperating_system

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

ACTIVITY FEED

Recent activity

3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

3 SOURCESView more in app
What this page doesn’t show

The version that knows your environment.

This page is what’s public. Mallory adds the parts that aren’t: which of your assets are affected, which adversaries are exploiting it right now, which detections to deploy, and what to do tonight.
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Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity2

Community discussion across Reddit, Mastodon, and other social sources.

EXTERNAL REFERENCES
MITRE CVE
cve.org · CVE-2025-11131
NVD
nvd.nist.gov/vuln/detail/CVE-2025-11131
MITRE CWE · CWE-20
cwe.mitre.org
Vendor Advisory
unisoc.com/en/support/announcement/1995394837938163714