CVE-2021-1373
Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family CAPWAP Denial of Service Vulnerability
HIGH 8.6
At a glance
- Source
- NVD
- EPSS
- EPSS 1.55 % · percentile 75 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- cisco
- NVD status
- Modified
Description
A vulnerability in the Control and Provisioning of Wireless Access Points (CAPWAP) protocol processing of Cisco IOS XE Wireless Controller Software for the Cisco Catalyst 9000 Family Wireless Controllers could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition of an affected device. The vulnerability is due to insufficient validation of CAPWAP packets. An attacker could exploit this vulnerability by sending a malformed CAPWAP packet to an affected device. A successful exploit could allow the attacker to cause the affected device to crash and reload, resulting in a DoS condition.
Weaknesses (CWE)
- CWE-126 — Buffer Over-read
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 8.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H | cisco |
| CVSS 3.1 | HIGH 8.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H | NVD · psirt@cisco.com (Secondary) |
| CVSS 3.1 | HIGH 8.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 2.0 | HIGH 7.8 | AV:N/AC:L/Au:N/C:N/I:N/A:C | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2021-6840
- GCVE · GCVE-0-2021-1373
CERT-FR advisories
- CERTFR-2021-AVI-219 — Multiples vulnérabilités dans les produits Cisco · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:cisco:ios_xe:16.10.1:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:16.10.1e:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:16.10.1s:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:16.11.1:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:16.11.1a:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:16.11.1b:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:16.11.1c:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:16.11.2:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:16.12.1:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:16.12.1s:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:16.12.1t:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:16.12.2s:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:16.12.2t:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:16.12.3:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:16.12.3s:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:16.12.4:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:16.12.4a:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:17.1.1:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:17.1.1s:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:17.1.1t:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:17.1.2:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:17.2.1:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:17.2.1a:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:17.2.3:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:17.3.1:*:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Cisco · Cisco IOS XE Software | affected n/a |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |