Authorization bypass in Cisco IOS XE Software
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-639.
Summary
A vulnerability in the Network Configuration Access Control Module (NACM) of Cisco IOS XE Software could allow an authenticated, remote attacker to obtain unauthorized read access to configuration or operational data. This vulnerability exists because a subtle change in inner API call behavior causes results to be filtered incorrectly. An attacker could exploit this vulnerability by using either NETCONF, RESTCONF, or gRPC Network Management Interface (gNMI) protocols and query data on paths that may have been denied by the NACM configuration. A successful exploit could allow the attacker to access data that should have been restricted according to the NACM configuration. Note: This vulnerability requires that the attacker obtain the credentials from a valid user with privileges lower than 15, and that NACM was configured to provide restricted read access for that user.
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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Cisco | Cisco IOS XE Software | 17.11.1; 17.11.1a; 17.12.1; 17.12.1w; 17.12.1a; 17.12.1x; 17.12.2; 17.12.2a; 17.12.1y; 17.12.1z; 17.12.1z1; 17.13.1; 17.13.1a; 17.11.99SW | — | No fix listed | CNA |
- Cisco IOS XE Software VendorCisco Affected 17.11.1; 17.11.1a; 17.12.1; 17.12.1w; 17.12.1a; 17.12.1x; 17.12.2; 17.12.2a; 17.12.1y; 17.12.1z; 17.12.1z1; 17.13.1; 17.13.1a; 17.11.99SW Fixed in — No fix listed CNA
CPE configurations NVD · 14
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:cisco:ios_xe:17.11.1:*:*:*:*:*:*:* | 17.11.1 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:17.11.1a:*:*:*:*:*:*:* | 17.11.1a | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:17.11.99sw:*:*:*:*:*:*:* | 17.11.99sw | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:17.12.1:*:*:*:*:*:*:* | 17.12.1 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:17.12.1a:*:*:*:*:*:*:* | 17.12.1a | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:17.12.1w:*:*:*:*:*:*:* | 17.12.1w | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:17.12.1x:*:*:*:*:*:*:* | 17.12.1x | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:17.12.1y:*:*:*:*:*:*:* | 17.12.1y | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:17.12.1z:*:*:*:*:*:*:* | 17.12.1z | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:17.12.1z1:*:*:*:*:*:*:* | 17.12.1z1 | Vulnerable | Cisco |
- cpe:2.3:o:cisco:ios_xe:17.11.1:*:*:*:*:*:*:* Versions 17.11.1 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:17.11.1a:*:*:*:*:*:*:* Versions 17.11.1a Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:17.11.99sw:*:*:*:*:*:*:* Versions 17.11.99sw Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:17.12.1:*:*:*:*:*:*:* Versions 17.12.1 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:17.12.1a:*:*:*:*:*:*:* Versions 17.12.1a Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:17.12.1w:*:*:*:*:*:*:* Versions 17.12.1w Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:17.12.1x:*:*:*:*:*:*:* Versions 17.12.1x Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:17.12.1y:*:*:*:*:*:*:* Versions 17.12.1y Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:17.12.1z:*:*:*:*:*:*:* Versions 17.12.1z Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:17.12.1z1:*:*:*:*:*:*:* Versions 17.12.1z1 Vulnerable ·Cisco
Show 4 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:cisco:ios_xe:17.12.2:*:*:*:*:*:*:* | 17.12.2 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:17.12.2a:*:*:*:*:*:*:* | 17.12.2a | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:17.13.1:*:*:*:*:*:*:* | 17.13.1 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:17.13.1a:*:*:*:*:*:*:* | 17.13.1a | Vulnerable | Cisco |
- cpe:2.3:o:cisco:ios_xe:17.12.2:*:*:*:*:*:*:* Versions 17.12.2 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:17.12.2a:*:*:*:*:*:*:* Versions 17.12.2a Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:17.13.1:*:*:*:*:*:*:* Versions 17.13.1 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:17.13.1a:*:*:*:*:*:*:* Versions 17.13.1a Vulnerable ·Cisco
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-20214
- 2026-10-03 Alias added: GHSA-fv9x-wjcx-9cgm
References
Advisory 1
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-2025-20214 · CVE Program
- CVE-2025-20214 · NVD
- FIRST EPSS
- GHSA-fv9x-wjcx-9cgm · 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