Is CVE-2015-2863 actively exploited?

A proof-of-concept exploit is publicly available for CVE-2015-2863, but active exploitation has not been confirmed.

Can CVE-2015-2863 be exploited remotely?

Yes. CVE-2015-2863 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2015-2863?

CVE-2015-2863 has a CVSS score of 4.3 (MEDIUM).

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MEDIUMPOC

CVE-2015-2863

NVD-CWE-OtherPublished: July 20, 2015· Updated: Jun 17, 2026

4.3

CVSS v3.1

Official Description

Open redirect vulnerability in Kaseya Virtual System Administrator (VSA) 7.x before 7.0.0.29, 8.x before 8.0.0.18, 9.0 before 9.0.0.14, and 9.1 before 9.1.0.4 allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via unspecified vectors.

NVD Source

Technical Analysis

CVE-2015-2863 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A proof-of-concept (PoC) exploit exists for CVE-2015-2863. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.