Is CVE-2021-44681 actively exploited?

No active exploitation of CVE-2021-44681 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-44681 be exploited remotely?

Yes. CVE-2021-44681 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-44681?

CVE-2021-44681 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2021-44681

CWE-502Published: December 6, 2021· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

An issue (5 of 6) was discovered in Veritas Enterprise Vault through 14.1.2. On start-up, the Enterprise Vault application starts several services that listen on random .NET Remoting TCP ports for possible commands from client applications. These TCP services can be exploited due to deserialization behavior that is inherent to the .NET Remoting service. A malicious attacker can exploit both TCP remoting services and local IPC services on the Enterprise Vault Server. This vulnerability is mitigated by properly configuring the servers and firewall as described in the vendor's security alert for this vulnerability (VTS21-003, ZDI-CAN-14080).

NVD Source

Technical Analysis

CVE-2021-44681 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.

From a weakness classification perspective (CWE-502): Insecure deserialization vulnerabilities allow attackers to inject malicious objects during deserialization, potentially enabling remote code execution.