Is CVE-2021-1142 actively exploited?

No active exploitation of CVE-2021-1142 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-1142 be exploited remotely?

Yes. CVE-2021-1142 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-1142?

CVE-2021-1142 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2021-1142

CWE-20Published: January 20, 2021· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

Multiple vulnerabilities in the web UI of Cisco Smart Software Manager Satellite could allow an unauthenticated, remote attacker to execute arbitrary commands on the underlying operating system. For more information about these vulnerabilities, see the Details section of this advisory.

NVD Source

Technical Analysis

CVE-2021-1142 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.