CVE-2025-20283Network attack vector

Root command execution via insufficient API input validation

Published Jul 16, 2025 · Updated Feb 26, 2026

Command injection in Cisco ISE 3.3 through Patch 6 and 3.4 through Patch 1 allows remote authenticated users to run commands as root. A specific, undisclosed API insufficiently validates fields in a crafted request before passing them to an operating-system command context. Valid high-privileged credentials are required; successful requests run arbitrary commands as root, enabling direct data reads and writes without a reported service interruption.

CVSS severity6.5
Medium
EPSS probability8.97%
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 ISE 3.3 through Patch 6 and 3.4 through Patch 1 allows remote authenticated users to run commands as root. A specific, undisclosed API insufficiently validates fields in a crafted request before passing them to an operating-system command context. Valid high-privileged credentials are required; successful requests run arbitrary commands as root, enabling direct data reads and writes without a reported service interruption.

The record

CVE
CVE-2025-20283
Published
Jul 16, 2025
Updated
Feb 26, 2026
Vendor
ClamAV
Product
Cisco Identity Services Engine
Classifications
CWE-74, T1210
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Jul 16, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 26, 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=3.3.0
  2. Affected versionversion=3.3 Patch 1
  3. Affected versionversion=3.3 Patch 2
  4. Affected versionversion=3.3 Patch 3
  5. Affected versionversion=3.3 Patch 4
  6. Affected versionversion=3.3 Patch 5
  7. Affected versionversion=3.3 Patch 6
  8. Affected versionversion=3.4.0
  9. Affected versionversion=3.4 Patch 1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

ClamAV · Cisco Identity Services Engineversion=3.3.0; version=3.3 Patch 1; version=3.3 Patch 2; version=3.3 Patch 3; version=3.3 Patch 4; version=3.3 Patch 5; version=3.3 Patch 6; version=3.4.0; version=3.4 Patch 1

Published CVSS scores

6.5Cisco PSIRTCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/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.

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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
T1210Exploitation of Remote Services

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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