Is CVE-2017-8850 actively exploited?

No active exploitation of CVE-2017-8850 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2017-8850 be exploited remotely?

Yes. CVE-2017-8850 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2017-8850?

CVE-2017-8850 has a CVSS score of 5.9 (MEDIUM).

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MEDIUM

CVE-2017-8850

CWE-319Published: May 11, 2017· Updated: Jun 17, 2026

5.9

CVSS v3.1

Official Description

An issue was discovered on OnePlus One, X, 2, 3, and 3T devices. Due to a lenient updater-script in the OnePlus OTA images, and the fact that both ROMs use the same OTA verification keys, attackers can install HydrogenOS over OxygenOS and vice versa, even on locked bootloaders, which allows for exploitation of vulnerabilities patched on one image but not on the other, in addition to expansion of the attack surface. This vulnerability can be exploited by Man-in-the-Middle (MiTM) attackers targeting the update process. This is possible because the update transaction does not occur over TLS (CVE-2016-10370). In addition, physical attackers can reboot the phone into recovery, and then use 'adb sideload' to push the OTA (on OnePlus 3/3T 'Secure Start-up' must be off).

NVD Source

Technical Analysis

CVE-2017-8850 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in full integrity compromise (data manipulation), with a CVSS base score of 5.9.