Is CVE-2020-15588 actively exploited?

No active exploitation of CVE-2020-15588 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2020-15588 be exploited remotely?

Yes. CVE-2020-15588 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2020-15588?

CVE-2020-15588 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2020-15588

CWE-190Published: July 29, 2020· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

An issue was discovered in the client side of Zoho ManageEngine Desktop Central 10.0.552.W. An attacker-controlled server can trigger an integer overflow in InternetSendRequestEx and InternetSendRequestByBitrate that leads to a heap-based buffer overflow and Remote Code Execution with SYSTEM privileges. This issue will occur only when untrusted communication is initiated with server. In cloud, Agent will always connect with trusted communication.

NVD Source

Technical Analysis

CVE-2020-15588 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 complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.