Is CVE-2019-13321 actively exploited?

No active exploitation of CVE-2019-13321 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2019-13321 be exploited remotely?

Partially. CVE-2019-13321 requires adjacent network access (same network segment) to exploit.

What is the CVSS score of CVE-2019-13321?

CVE-2019-13321 has a CVSS score of 8.0 (HIGH).

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HIGH

CVE-2019-13321

CWE-732Published: February 10, 2020· Updated: Jun 17, 2026

8.0

CVSS v3.1

Official Description

This vulnerability allows network adjacent attackers to execute arbitrary code on affected installations of Xiaomi Browser Prior to 10.4.0. User interaction is required to exploit this vulnerability in that the target must connect to a malicious access point. The specific flaw exists within the handling of HTTP responses to the Captive Portal. A crafted HTML response can cause the Captive Portal to to open a browser to a specified location without user interaction. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the current process. Was ZDI-CAN-7467.

NVD Source

Technical Analysis

CVE-2019-13321 requires adjacent network access, limiting remote exploitation but still posing risk in shared or local network environments.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.0.