CVE-2021-1401Network attack vector

Root command execution via crafted HTTP requests

Published May 6, 2021 · Updated Nov 8, 2024

Command injection in Cisco Small Business WAP firmware allows remote authenticated users to execute root commands through crafted HTTP requests. The web-based management interface improperly validates user-supplied input before incorporating it into device commands. Valid administrative credentials are required; successful exploitation runs arbitrary commands as root, exposing device data and permitting configuration changes without a reported availability impact.

CVSS severity5.5
Medium
EPSS probability2.03%
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 Cisco Small Business WAP firmware allows remote authenticated users to execute root commands through crafted HTTP requests. The web-based management interface improperly validates user-supplied input before incorporating it into device commands. Valid administrative credentials are required; successful exploitation runs arbitrary commands as root, exposing device data and permitting configuration changes without a reported availability impact.

The record

CVE
CVE-2021-1401
Published
May 6, 2021
Updated
Nov 8, 2024
Vendor
ClamAV
Product
Cisco Business Wireless Access Point Software
Classifications
CWE-78, T1059
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. May 6, 2021CVE publishedPublication date reported by the CVE source.
  2. Nov 8, 2024Record 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=n/a

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

ClamAV · Cisco Business Wireless Access Point Softwareversion=n/a

Published CVSS scores

5.5CiscoCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:N

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.

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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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS 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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