Cisco IOS XE Software Web UI Command Injection Vulnerability
Key facts
- Attack vector
- Network
- Privileges required
- Low
- 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 3.1 · NVD. Fix status from CNA. Impact type from CWE-77.
Summary
A vulnerability in the web-based user interface (web UI) of Cisco IOS XE Software could allow an authenticated, remote attacker with read-only privileges to inject IOS commands to an affected device. The injected commands should require a higher privilege level in order to be executed. The vulnerability is due to insufficient input validation of specific HTTP requests. An attacker could exploit this vulnerability by sending crafted HTTP requests to a specific web UI endpoint on an affected device. A successful exploit could allow the attacker to inject IOS commands to the affected device, which could allow the attacker to alter the configuration of the device or cause a denial of service (DoS) condition.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Cisco | Cisco IOS XE Software 16.11.1 | all versions | — | No fix listed | CNA |
- Cisco IOS XE Software 16.11.1 VendorCisco Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:cisco:ios_xe:16.11.1:*:*:*:*:*:*:* | 16.11.1 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:16.11.1a:*:*:*:*:*:*:* | 16.11.1a | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:16.11.1b:*:*:*:*:*:*:* | 16.11.1b | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:16.11.1c:*:*:*:*:*:*:* | 16.11.1c | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:16.11.1s:*:*:*:*:*:*:* | 16.11.1s | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:16.12.1y:*:*:*:*:*:*:* | 16.12.1y | Vulnerable | Cisco |
- cpe:2.3:o:cisco:ios_xe:16.11.1:*:*:*:*:*:*:* Versions 16.11.1 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:16.11.1a:*:*:*:*:*:*:* Versions 16.11.1a Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:16.11.1b:*:*:*:*:*:*:* Versions 16.11.1b Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:16.11.1c:*:*:*:*:*:*:* Versions 16.11.1c Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:16.11.1s:*:*:*:*:*:*:* Versions 16.11.1s Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:16.12.1y:*:*:*:*:*:*:* Versions 16.12.1y Vulnerable ·Cisco
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-3224
- 2026-10-03 Alias added: GHSA-r7vq-qr3g-r3wg
More Cisco Ios Xe vulnerabilities
- TI-2023-06904 Cisco is providing an update for the ongoing investigation into observed exploitation of… KEVCVSS 3.1CRITICAL 10.0
- TI-2018-00122 Memory corruption in Cisco IOS and IOS XE KEVCVSS 3.1CRITICAL 9.8
- TI-2017-02977 Improper input validation in Cisco IOS and IOS XE Software KEVCVSS 3.1CRITICAL 9.8
- TI-2018-00135 Memory corruption in Cisco IOS, IOS XE, and IOS XR KEVCVSS 3.1HIGH 8.8
- TI-2017-04498 Memory corruption in Cisco IOS KEVCVSS 3.1HIGH 8.8
- TI-2017-04497 Memory corruption in Cisco IOS XE Software KEVCVSS 3.1HIGH 8.8
Sources
- CVE-2020-3224 · CVE Program
- CVE-2020-3224 · NVD
- FIRST EPSS
- GHSA-r7vq-qr3g-r3wg · 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