Is CVE-2021-2177 actively exploited?

No active exploitation of CVE-2021-2177 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-2177 be exploited remotely?

Yes. CVE-2021-2177 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-2177?

CVE-2021-2177 has a CVSS score of 10.0 (CRITICAL).

HOME VULNERABILITIESCVE-2021-2177

CRITICAL

CVE-2021-2177

NVD-CWE-noinfoPublished: April 22, 2021· Updated: Jun 17, 2026

10.0

CVSS v3.1

Official Description

Vulnerability in the Oracle Secure Global Desktop product of Oracle Virtualization (component: Gateway). The supported version that is affected is 5.6. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Secure Global Desktop. While the vulnerability is in Oracle Secure Global Desktop, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in takeover of Oracle Secure Global Desktop.

NVD Source

Technical Analysis

CVE-2021-2177 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 10.0.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.