Root code execution via crafted API request
Published Jul 16, 2025 · Updated Feb 26, 2026
Command injection in Cisco ISE and ISE-PIC 3.3 and 3.4 allows remote attackers to execute code as root through a crafted API request. A specific, undisclosed API insufficiently validates user-supplied input before processing it; Cisco has not identified the endpoint or operation. No credentials or special configuration are required, and successful exploitation grants control of the underlying operating system.
Summary
What happened
Command injection in Cisco ISE and ISE-PIC 3.3 and 3.4 allows remote attackers to execute code as root through a crafted API request. A specific, undisclosed API insufficiently validates user-supplied input before processing it; Cisco has not identified the endpoint or operation. No credentials or special configuration are required, and successful exploitation grants control of the underlying operating system.
The record
- CVE
- CVE-2025-20337
- Published
- Jul 16, 2025
- Updated
- Feb 26, 2026
- Vendor
- ClamAV
- Product
- Cisco Identity Services Engine
- Classifications
- CWE-74, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 1, 2025Exploitation reportedCisco PSIRT observed exploitation attempts
- Jul 16, 2025CVE publishedPublication date reported by the CVE source.
- Jul 28, 2025Exploitation reportedCISA Known Exploited Vulnerabilities catalog listing
- Feb 26, 2026Record 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.
- Affected versionversion=3.3.0
- Affected versionversion=3.3 Patch 1
- Affected versionversion=3.3 Patch 2
- Affected versionversion=3.3 Patch 3
- Affected versionversion=3.3 Patch 4
- Affected versionversion=3.3 Patch 5
- Affected versionversion=3.3 Patch 6
- Affected versionversion=3.4.0
- Affected versionversion=3.4 Patch 1
What conditions does exploitation require?
What is affected?
Published CVSS scores
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.
Weakness, pattern, technique
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.
Reported exploitation
- CISA Known Exploited Vulnerabilities catalog listingknown exploited catalog
- Cisco PSIRT observed exploitation attemptsreported exploitation
Technologies
Your stack
See the directory against your own environment.
Your stack
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