CVE-2021-30642Network attack vector

Unauthenticated command execution via web UI input

Published Apr 27, 2021 · Updated Aug 3, 2024

OS command injection in Symantec Security Analytics allows remote attackers to execute arbitrary commands with elevated privileges via the web UI. The web UI fails to validate attacker-controlled input before passing it into an operating-system command execution path. Exploitation requires network access to the web UI and grants command execution with the privileges of the affected appliance service.

CVSS severity9.8
Critical
EPSS probability2.67%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

OS command injection in Symantec Security Analytics allows remote attackers to execute arbitrary commands with elevated privileges via the web UI. The web UI fails to validate attacker-controlled input before passing it into an operating-system command execution path. Exploitation requires network access to the web UI and grants command execution with the privileges of the affected appliance service.

The record

CVE
CVE-2021-30642
Published
Apr 27, 2021
Updated
Aug 3, 2024
Vendor
Symantec
Product
Symantec Security Analytics
Classifications
CWE-78, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 27, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=Security Analytics 7.2 prior 7.2.7, 8.1 prior to 8.1.3-NSR3, 8.2 prior to 8.2.1-NSR2 or 8.2.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Symantec · Symantec Security Analyticsversion=Security Analytics 7.2 prior 7.2.7, 8.1 prior to 8.1.3-NSR3, 8.2 prior to 8.2.1-NSR2 or 8.2.2

Published CVSS scores

9.8BroadcomCVSS:3.1/AV:N/AC:L/PR:N/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1190Exploit Public-Facing Application

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo