Is CVE-2021-31580 actively exploited?

No active exploitation of CVE-2021-31580 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-31580 be exploited remotely?

Yes. CVE-2021-31580 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-31580?

CVE-2021-31580 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2021-31580

CRITICAL

CVE-2021-31580

CWE-78Published: July 22, 2021· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

The restricted shell provided by Akkadian Provisioning Manager Engine (PME) can be bypassed by switching the OpenSSH channel from `shell` to `exec` and providing the ssh client a single execution parameter. This issue was resolved in Akkadian OVA appliance version 3.0 (and later), Akkadian Provisioning Manager 5.0.2 (and later), and Akkadian Appliance Manager 3.3.0.314-4a349e0 (and later).

NVD Source

Technical Analysis

CVE-2021-31580 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.