Is CVE-2015-8843 actively exploited?

No active exploitation of CVE-2015-8843 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2015-8843 be exploited remotely?

No. CVE-2015-8843 requires local access to exploit.

What is the CVSS score of CVE-2015-8843?

CVE-2015-8843 has a CVSS score of 7.4 (HIGH).

HOME VULNERABILITIESCVE-2015-8843

HIGH

CVE-2015-8843

CWE-119Published: April 13, 2016· Updated: Jun 17, 2026

7.4

CVSS v3.1

Official Description

The Foxit Cloud Update Service (FoxitCloudUpdateService) in Foxit Reader 6.1 through 6.2.x and 7.x before 7.2.2, when an update to the Cloud plugin is available, allows local users to gain privileges by writing crafted data to a shared memory region, which triggers memory corruption.

NVD Source

Technical Analysis

CVE-2015-8843 requires local access, meaning attackers must already have a foothold on the target system.

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 complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.4.

From a weakness classification perspective (CWE-119): Buffer overflow vulnerabilities can lead to arbitrary code execution or denial of service by corrupting adjacent memory.