CVE-2026-20163Network attack vector

Authenticated shell command execution via unarchive_cmd

Published Mar 11, 2026 · Updated Mar 11, 2026

Command injection in Splunk Enterprise and Splunk Cloud Platform allows remote authenticated users to execute arbitrary shell commands. The indexing-preview REST handler passes the unarchive_cmd request parameter to a shell without sufficient input sanitization while previewing uploaded files. A role containing the high-privilege edit_cmd capability is required, after which commands run with the Splunk service account's access.

CVSS severity8.0
High
EPSS probability0.46%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in Splunk Enterprise and Splunk Cloud Platform allows remote authenticated users to execute arbitrary shell commands. The indexing-preview REST handler passes the unarchive_cmd request parameter to a shell without sufficient input sanitization while previewing uploaded files. A role containing the high-privilege edit_cmd capability is required, after which commands run with the Splunk service account's access.

The record

CVE
CVE-2026-20163
Published
Mar 11, 2026
Updated
Mar 11, 2026
Vendor
Zoom Video Communications, Inc.
Product
Splunk Enterprise
Classifications
CWE-77, T1059
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Mar 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=10.0 <10.0.4
  2. Affected versionversion=9.3 <9.3.10
  3. Affected versionversion=9.4 <9.4.9

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Zoom Video Communications, Inc. · Splunk Enterpriseversion=10.0 <10.0.4; version=9.3 <9.3.10; version=9.4 <9.4.9
Zoom Video Communications, Inc. · Splunk Cloud Platformversion=10.0.2503 <10.0.2503.12; version=10.1.2507 <10.1.2507.16; version=10.2.2510 <10.2.2510.5; version=9.3.2411 <9.3.2411.124

Published CVSS scores

7.2Cisco Systems, Inc.CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
8.0SplunkCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
T1059Command and Scripting Interpreter

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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