CVEvulnerability
CVE-2022-20676
6.7 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2022-04-15
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.1 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:N
- CVSS 3.1 ([email protected])
- 6.7 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 7.2 HIGH — AV:L/AC:L/Au:N/C:C/I:C/A:C
- Weaknesses
- CWE-20, CWE-250
Description
A vulnerability in the Tool Command Language (Tcl) interpreter of Cisco IOS XE Software could allow an authenticated, local attacker to escalate from privilege level 15 to root-level privileges. This vulnerability is due to insufficient input validation of data that is passed into the Tcl interpreter. An attacker could exploit this vulnerability by loading malicious Tcl code on an affected device. A successful exploit could allow the attacker to execute arbitrary commands as root. By default, Tcl shell access requires privilege level 15.
Affected configurations
• cisco ios xe 16.12.1z2
• cisco ios xe 17.2.1
• cisco ios xe 17.2.1a
• cisco ios xe 17.2.1r
• cisco ios xe 17.2.1v
• cisco ios xe 17.2.2
• cisco ios xe 17.2.3
• cisco ios xe 17.3.1
• cisco ios xe 17.3.1a
• cisco ios xe 17.3.1w
• cisco ios xe 17.3.1x
• cisco ios xe 17.3.1z
• cisco ios xe 17.3.2
• cisco ios xe 17.3.2a
• cisco ios xe 17.3.3
• cisco ios xe 17.3.3a
• cisco ios xe 17.3.4
• cisco ios xe 17.3.4a
• cisco ios xe 17.3.4b
• cisco ios xe 17.3.4c
• cisco ios xe 17.4.1
• cisco ios xe 17.4.1a
• cisco ios xe 17.4.1b
• cisco ios xe 17.4.1c
• cisco ios xe 17.4.2
• cisco ios xe 17.4.2a
• cisco ios xe 17.5.1
• cisco ios xe 17.5.1a
• cisco ios xe 17.5.1c