Vulnerability Database

289,784

Total vulnerabilities in the database

CVE-2021-1403

A vulnerability in the web UI feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to conduct a cross-site WebSocket hijacking (CSWSH) attack and cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient HTTP protections in the web UI on an affected device. An attacker could exploit this vulnerability by persuading an authenticated user of the web UI to follow a crafted link. A successful exploit could allow the attacker to corrupt memory on the affected device, forcing it to reload and causing a DoS condition.

  • Published: Mar 24, 2021
  • Updated: Apr 14, 2023
  • CVE: CVE-2021-1403
  • Severity: High
  • Exploit:

CVSS v3:

  • Severity: High
  • Score: 7.4
  • AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:H

CVSS v2:

  • Severity: High
  • Score: 7.1
  • AV:N/AC:M/Au:N/C:N/I:N/A:C
Software From Fixed in
cisco / ios_xe 16.6.1 16.6.1.x
cisco / ios_xe 16.4.1 16.4.1.x
cisco / ios_xe 16.3.1 16.3.1.x
cisco / ios_xe 16.3.1a 16.3.1a.x
cisco / ios_xe 16.3.2 16.3.2.x
cisco / ios_xe 16.3.3 16.3.3.x
cisco / ios_xe 16.5.1 16.5.1.x
cisco / ios_xe 16.5.1a 16.5.1a.x
cisco / ios_xe 16.3.4 16.3.4.x
cisco / ios_xe 16.5.1b 16.5.1b.x
cisco / ios_xe 16.4.2 16.4.2.x
cisco / ios_xe 16.3.5b 16.3.5b.x
cisco / ios_xe 16.3.6 16.3.6.x
cisco / ios_xe 16.6.3 16.6.3.x
cisco / ios_xe 16.8.1 16.8.1.x
cisco / ios_xe 16.7.1 16.7.1.x
cisco / ios_xe 16.6.2 16.6.2.x
cisco / ios_xe 16.9.1 16.9.1.x
cisco / ios_xe 16.3.5 16.3.5.x
cisco / ios_xe 16.5.2 16.5.2.x
cisco / ios_xe 16.8.1a 16.8.1a.x
cisco / ios_xe 16.8.1s 16.8.1s.x
cisco / ios_xe 16.8.1b 16.8.1b.x
cisco / ios_xe 16.8.2 16.8.2.x
cisco / ios_xe 16.7.2 16.7.2.x
cisco / ios_xe 16.8.1d 16.8.1d.x
cisco / ios_xe 16.7.3 16.7.3.x
cisco / ios_xe 16.7.1a 16.7.1a.x
cisco / ios_xe 16.7.1b 16.7.1b.x
cisco / ios_xe 16.8.1c 16.8.1c.x
cisco / ios_xe 16.8.1e 16.8.1e.x
cisco / ios_xe 16.4.3 16.4.3.x
cisco / ios_xe 16.9.1s 16.9.1s.x
cisco / ios_xe 16.9.1c 16.9.1c.x
cisco / ios_xe 16.9.1b 16.9.1b.x
cisco / ios_xe 16.5.3 16.5.3.x
cisco / ios_xe 16.3.7 16.3.7.x
cisco / ios_xe 16.3.8 16.3.8.x
cisco / ios_xe 16.9.1d 16.9.1d.x
cisco / ios_xe 16.6.4s 16.6.4s.x
cisco / ios_xe 16.6.4 16.6.4.x
cisco / ios_xe 16.10.1 16.10.1.x
cisco / ios_xe 16.7.4 16.7.4.x
cisco / ios_xe 16.9.1a 16.9.1a.x
cisco / ios_xe 16.9.2a 16.9.2a.x
cisco / ios_xe 16.9.2 16.9.2.x
cisco / ios_xe 16.6.4a 16.6.4a.x
cisco / ios_xe 16.12.1 16.12.1.x
cisco / ios_xe 16.6.5 16.6.5.x
cisco / ios_xe 16.11.1 16.11.1.x
cisco / ios_xe 17.1.1 17.1.1.x
cisco / ios_xe 16.11.1a 16.11.1a.x
cisco / ios_xe 16.12.1c 16.12.1c.x
cisco / ios_xe 16.12.1t 16.12.1t.x
cisco / ios_xe 16.11.2 16.11.2.x
cisco / ios_xe 16.12.1s 16.12.1s.x
cisco / ios_xe 16.12.1a 16.12.1a.x
cisco / ios_xe 16.12.1x 16.12.1x.x
cisco / ios_xe 16.11.1c 16.11.1c.x
cisco / ios_xe 16.11.1b 16.11.1b.x
cisco / ios_xe 16.11.1s 16.11.1s.x
cisco / ios_xe 16.12.1w 16.12.1w.x
cisco / ios_xe 16.10.1s 16.10.1s.x
cisco / ios_xe 16.10.1d 16.10.1d.x
cisco / ios_xe 16.9.2s 16.9.2s.x
cisco / ios_xe 16.6.6 16.6.6.x
cisco / ios_xe 16.9.3h 16.9.3h.x
cisco / ios_xe 16.6.5b 16.6.5b.x
cisco / ios_xe 16.6.5a 16.6.5a.x
cisco / ios_xe 16.3.9 16.3.9.x
cisco / ios_xe 16.9.3a 16.9.3a.x
cisco / ios_xe 16.10.1a 16.10.1a.x
cisco / ios_xe 16.10.1f 16.10.1f.x
cisco / ios_xe 16.10.1g 16.10.1g.x
cisco / ios_xe 16.10.2 16.10.2.x
cisco / ios_xe 16.9.3 16.9.3.x
cisco / ios_xe 16.12.1y 16.12.1y.x
cisco / ios_xe 16.10.1e 16.10.1e.x
cisco / ios_xe 16.10.1b 16.10.1b.x
cisco / ios_xe 16.8.3 16.8.3.x
cisco / ios_xe 16.9.3s 16.9.3s.x
cisco / ios_xe 16.10.1c 16.10.1c.x
cisco / ios_xe 16.9.4 16.9.4.x
cisco / ios_xe 16.12.2 16.12.2.x
cisco / ios_xe 16.6.7a 16.6.7a.x
cisco / ios_xe 16.9.4c 16.9.4c.x
cisco / ios_xe 16.12.2a 16.12.2a.x
cisco / ios_xe 16.6.7 16.6.7.x
cisco / ios_xe 16.10.3 16.10.3.x
cisco / ios_xe 16.12.4 16.12.4.x
cisco / ios_xe 16.3.10 16.3.10.x
cisco / ios_xe 16.9.5 16.9.5.x
cisco / ios_xe 16.9.5f 16.9.5f.x
cisco / ios_xe 16.6.8 16.6.8.x
cisco / ios_xe 16.12.3 16.12.3.x
cisco / ios_xe 17.2.1 17.2.1.x
cisco / ios_xe 17.1.1s 17.1.1s.x
cisco / ios_xe 16.12.2t 16.12.2t.x
cisco / ios_xe 17.1.1a 17.1.1a.x
cisco / ios_xe 16.12.2s 16.12.2s.x
cisco / ios_xe 16.12.3a 16.12.3a.x
cisco / ios_xe 17.1.1t 17.1.1t.x
cisco / ios_xe 16.3.11 16.3.11.x
cisco / ios_xe 17.2.1a 17.2.1a.x
cisco / ios_xe 3.15.2xbs 3.15.2xbs.x
cisco / ios_xe 17.2.1v 17.2.1v.x
cisco / ios_xe 16.12.1z 16.12.1z.x
cisco / ios_xe 16.12.3s 16.12.3s.x
cisco / ios_xe 3.15.1xbs 3.15.1xbs.x
cisco / ios_xe 17.2.1r 17.2.1r.x
cisco / ios_xe 17.1.2 17.1.2.x
cisco / ios_xe 16.12.4a 16.12.4a.x
cisco / ios_xe 17.1.3 17.1.3.x
cisco / ios_xe 17.2.2 17.2.2.x
cisco / ios_xe 17.3.1 17.3.1.x
cisco / ios_xe 16.12.1za 16.12.1za.x
cisco / ios_xe 17.3.2 17.3.2.x
cisco / ios_xe 17.3.1a 17.3.1a.x
cisco / ios_xe 17.3.2a 17.3.2a.x
cisco / ios_xe 17.3.1w 17.3.1w.x
cisco / ios_xe 17.2.3 17.2.3.x
cisco / ios_xe 16.9.6 16.9.6.x
cisco / ios_xe 17.3.1x 17.3.1x.x