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CVE-2021-4326

Imperative Local Command Injection allows Activity Masking

No known exploitation. EPSS puts it in the 16th percentile. Fixed versions are out.

CVSS 3.13.3LowEPSS percentile16th0.3% chance in 30 daysCISA KEVNot listedNo confirmed exploitation
No public exploit knownFix3 products3 fixed builds listed below

Published Updated Sources: CVE.org, NVD, GitHub

NVD CVE.org

What to do

Find your product and version, then upgrade to the build on the right.

  • Open Mainframe Project ZoweAffected: ≥ 1.16.0, < 1.28.2Upgrade to: 1.28.2Affected: ≥ 2.0.0, < 2.5.0Upgrade to: 2.5.0Stated by: CVE record
  • Npm @zowe/imperativeAffected: ≥ 5.0.0, < 5.7.1Upgrade to: 5.7.1Stated by: GitHub advisory
  • Linuxfoundation ZoweAffected: ≥ 1.16.0, < 1.28.2Upgrade to: 1.28.2Stated by: NVD

Versions as the sources state them. Full version matrix after sign-in

What it is

From the CVE record

A vulnerability in Imperative framework which allows already-privileged local actors to execute arbitrary shell commands via plugin install/update commands, or maliciously formed environment variables. Impacts Zowe CLI.

In plain language

No plain-language summary for this CVE yet.

Exploitation

Where each signal puts this CVE on the scale from published to confirmed exploited.

EPSS16th
CISA KEV

Not in the catalog. CISA has not confirmed exploitation.

Public exploits

No public exploit or proof of concept found in the sources we track.

EPSS

0.3% chance of exploitation activity in the next 30 days, which ranks it in the 16th percentile of scored CVEs.

Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.

Lifecycle

4 events over 638 days, from the signal feeds we watch.

  1. Patch availablerecord updated
  2. Publishedweakness classified

Affected products

Technical detail

CVSS 3.1 vector

Open in the CVSS calculator

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Scored 3.3 by NVD.

How it is reached

  • Attack Vector LocalRequires local access to the vulnerable system (e.g. local login, malicious file)
  • Attack Complexity LowNo special conditions — the attack can be reliably reproduced
  • Privileges Required LowRequires basic user-level privileges
  • User Interaction NoneNo user interaction needed — fully automated exploitation

Scope

  • Scope UnchangedImpact is limited to the vulnerable component itself

Impact if exploited

  • Confidentiality LowSome restricted information is disclosed, but limited in scope
  • Integrity NoneNo integrity impact
  • Availability NoneNo availability impact

Weaknesses

Sources

References in the record

And 4 more references. See all after sign-in

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We'll flag the next CVE, public exploit or patch for Zowe, not every advisory.