Cisco IOx Application Framework Arbitrary File Creation Vulnerability
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
A vulnerability in the Cisco Application Framework component of the Cisco IOx application environment could allow an authenticated, remote attacker to write or modify arbitrary files in the virtual instance that is running on the affected device. The vulnerability is due to insufficient input validation of user-supplied application packages. An attacker who can upload a malicious package within Cisco IOx could exploit the vulnerability to modify arbitrary files. The impacts of a successful exploit are limited to the scope of the virtual instance and do not affect the device that is hosting Cisco IOx.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-3238
- 2026-10-03 Alias added: GHSA-vwph-w88h-2p73
References
More Cisco Iox vulnerabilities
- TI-2017-02950 Memory corruption in Cisco IOx CVSS 3.0CRITICAL 9.8
- TI-2023-06784 Cisco IOx Application Hosting Environment Command Injection Vulnerability CVSS 3.1HIGH 8.8
- TI-2017-02948 Path traversal in Cisco Application-Hosting Framework CVSS 3.0HIGH 7.5
- TI-2017-02949 Improper input validation in Cisco Application-Hosting Framework CVSS 3.0HIGH 8.1
- TI-2016-07528 Path traversal in Cisco IOx CVSS 3.0MEDIUM 6.5
- TI-2020-02797 Cisco IOx Application Framework Arbitrary File Overwrite Vulnerability CVSS 3.1MEDIUM 6.3
Sources
- CVE-2020-3238 · CVE Program
- CVE-2020-3238 · NVD
- FIRST EPSS
- GHSA-vwph-w88h-2p73 · GitHub Advisory Database · CC BY 4.0
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