Resource management flaw in Cisco IOS XE
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-399 and the CVSS impact.
Summary
A vulnerability in the wireless controller manager of Cisco IOS XE could allow an unauthenticated, adjacent attacker to cause a restart of the switch and result in a denial of service (DoS) condition. The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by submitting a crafted association request. An exploit could allow the attacker to cause the switch to restart. This vulnerability affects Cisco Catalyst 3650 and 3850 switches running IOS XE Software versions 16.1 through 16.3.3, and acting as wireless LAN controllers (WLC). Cisco Bug IDs: CSCvd45069.
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 IOS XE | Cisco IOS XE | — | No fix listed | CNA |
- Cisco IOS XE Vendor— Affected Cisco IOS XE Fixed in — No fix listed CNA
CPE configurations NVD · 13
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:cisco:ios_xe:16.1.1:*:*:*:*:*:*:* | 16.1.1 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:16.1.2:*:*:*:*:*:*:* | 16.1.2 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:16.1.3:*:*:*:*:*:*:* | 16.1.3 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:16.1.3a:*:*:*:*:*:*:* | 16.1.3a | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:16.1.4:*:*:*:*:*:*:* | 16.1.4 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:16.2.1:*:*:*:*:*:*:* | 16.2.1 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:16.2.2:*:*:*:*:*:*:* | 16.2.2 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:16.2.2a:*:*:*:*:*:*:* | 16.2.2a | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:16.2.3:*:*:*:*:*:*:* | 16.2.3 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:ios_xe:16.3.1:*:*:*:*:*:*:* | 16.3.1 | Vulnerable | Cisco |
- cpe:2.3:o:cisco:ios_xe:16.1.1:*:*:*:*:*:*:* Versions 16.1.1 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:16.1.2:*:*:*:*:*:*:* Versions 16.1.2 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:16.1.3:*:*:*:*:*:*:* Versions 16.1.3 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:16.1.3a:*:*:*:*:*:*:* Versions 16.1.3a Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:16.1.4:*:*:*:*:*:*:* Versions 16.1.4 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:16.2.1:*:*:*:*:*:*:* Versions 16.2.1 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:16.2.2:*:*:*:*:*:*:* Versions 16.2.2 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:16.2.2a:*:*:*:*:*:*:* Versions 16.2.2a Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:16.2.3:*:*:*:*:*:*:* Versions 16.2.3 Vulnerable ·Cisco
- cpe:2.3:o:cisco:ios_xe:16.3.1:*:*:*:*:*:*:* Versions 16.3.1 Vulnerable ·Cisco
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2017-12222
- 2026-10-03 Alias added: GHSA-h5jp-68rm-94gf
References
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-2017-12222 · CVE Program
- CVE-2017-12222 · NVD
- FIRST EPSS
- GHSA-h5jp-68rm-94gf · 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