Memory corruption in Cisco IOx
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.
Summary
A vulnerability in the Data-in-Motion (DMo) process installed with the Cisco IOx application environment could allow an unauthenticated, remote attacker to cause a stack overflow that could allow remote code execution with root privileges in the virtual instance running on an affected device. The vulnerability is due to insufficient bounds checking in the DMo process. An attacker could exploit this vulnerability by sending crafted packets that are forwarded to the DMo process for evaluation. The impacts of a successful exploit are limited to the scope of the virtual instance and do not impact the router that is hosting Cisco IOx. This vulnerability affects the following Cisco 800 Series Industrial Integrated Services Routers: Cisco IR809 and Cisco IR829. Cisco IOx Releases 1.0.0.0 and 1.1.0.0 are vulnerable. Cisco Bug IDs: CSCuy52330.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | Cisco IOx | Cisco IOx | — | No fix listed | CNA |
- Cisco IOx Vendor— Affected Cisco IOx Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2017-3853
- 2026-10-03 Alias added: GHSA-q7j7-c4rf-9cfp
- 2026-10-06 EPSS moved to the 95th–99th percentile
References
More Cisco Iox vulnerabilities
- 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-2020-02798 Cisco IOx Application Framework Arbitrary File Creation Vulnerability CVSS 3.1HIGH 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-2017-3853 · CVE Program
- CVE-2017-3853 · NVD
- FIRST EPSS
- GHSA-q7j7-c4rf-9cfp · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences