CVEvulnerability
CVE-2020-3516
4.3 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2020-09-24
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 4.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
- CVSS 3.0 ([email protected])
- 4.3 MEDIUM — CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
- CVSS 2.0 ([email protected])
- 4.0 MEDIUM — AV:N/AC:L/Au:S/C:N/I:N/A:P
- Weaknesses
- CWE-20
Description
A vulnerability in the web server authentication of Cisco IOS XE Software could allow an authenticated, remote attacker to crash the web server on the device. The vulnerability is due to insufficient input validation during authentication. An attacker could exploit this vulnerability by entering unexpected characters during a valid authentication. A successful exploit could allow the attacker to crash the web server on the device, which must be manually recovered by disabling and re-enabling the web server.
Affected configurations
• cisco ios xe (< 16.9.6)
• cisco ios xe (>= 16.12.0 < 16.12.2)
• cisco ios xe (>= 17.1.0 < 17.1.1)
• cisco ios xe 17.2.1
Related
Weakness · CWE (1)
- CWE-20 Improper Input Validation weakness