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No exploitation reportedFix available

CVE-2021-31580

No exploitation reported by the sources we read.

  • Published2021-07-22
  • Fixed in5.0.2 · 3.3.0.314-4a349e0
  • WeaknessCWE-78

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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).

Timeline

dates in UTC
  1. 2021-07-2219:15CVE publishedNVD

Versions per branch

NVD
Akkadianlabs provisioning manager
BranchAffectedFixed in
5.0≥ 4.0.0, < 5.0.25.0.2
3.x≥ 3.0.0, < 3.3.0.314-4a349e03.3.0.314-4a349e0
Akkadianlabs ova appliance
BranchAffectedFixed in
3.0< 3.03.0

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

  1. Update Akkadianlabs provisioning manager to 5.0.2 · 3.3.0.314-4a349e0

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • CNACVSS 3.18.7known since 2026-10-23
  • NVDCVSS 3.19.8read 2026-10-23
  • NVDCVSS 2.010read 2026-10-23
  • CNAweakness (CWE)CWE-78known since 2026-10-23
  • NVDweakness (CWE)CWE-78read 2026-10-23
  • FIRST EPSSEPSS score3.0 %2026-11-08
  • GitHub Advisoriesadvisory—

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2021-07-22
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-8892-4233-8xfv

Frequently asked questions

What is CVE-2021-31580?

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).

Is CVE-2021-31580 actively exploited?

Active exploitation of CVE-2021-31580 has not been confirmed. Its EPSS score was 3.0% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

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

CVE-2021-31580 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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