How severe is CVE-2018-5327?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Cmcm Armorfly Browser \& Downloader

CVE-2018-5327

Cheetah Mobile Armorfly Browser & Downloader 1.1.05.0010, when installed on unspecified "older" Android platforms, allows Same Origin Policy Bypass.

Published 2018-01-12 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.012 (66.2th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 66th percentile — 66.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000

Affected products

Cmcm Armorfly Browser \& Downloader — versions 1.1.05.0010
Google Android

References

twitter.com/mishradhiraj_/status/950975902892150785 (Third Party Advisory)

Frequently asked questions

What is CVE-2018-5327?: CVE-2018-5327 is a high-severity vulnerability in Cmcm Armorfly Browser \& Downloader. CVSS score: 7.5/10. Published 2018-01-12.
How severe is CVE-2018-5327?: High severity. CVSS v3 base score is 7.5 out of 10.