CVE-2021-1382
A vulnerability in the CLI of Cisco IOS XE SD-WAN Software could allow an authenticated, local attacker to inject arbitrary commands to be executed with root privileges on the underlying operating system. This vulnerability is due to insufficient input validation on certain CLI commands. An attacker could exploit this vulnerability by authenticating to the device and submitting crafted input to the CLI. The attacker must be authenticated as an administrative user to execute the affected commands. A successful exploit could allow the attacker to execute commands with root privileges.
Key facts
- CVSS score
- 6.0 (v3.1)
- Severity
- MEDIUM
- CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N- Weakness (CWE)
- CWE-77
- EPSS score
- 0.7% (53th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2021-6849)
- Published
- March 24, 2021
- NVD last modified
- June 17, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2021-6849 in the EU Vulnerability Database. Last updated in EUVD on November 8, 2024.
View on the EU Vulnerability DatabaseAffected products
- cisco / ios xe
Certified products that may be affected
21 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.
- Cisco Catalyst 9800 (40/80/L) Wireless Controllers running IOS-XE 16.12 - Cisco Systems, Inc. - FIPS 140 4606 - historical
- Cisco Aironet 1562e/i/d/ps, 2802e/i, 3802e/i/p, 4800 and IW6300H- AC/DC/DCW Wireless LAN Access Points, AireOS Version 8.10MR3 and IOS-XE 17.3 - Cisco Systems, Inc. - FIPS 140 4129 - historical
- Cisco Aggregation Services Router 1000 Series (ASR1K), Cisco Cloud Services Router 1000V (CSR1000V), Cisco Integrated Services Router 1100 Series (ISR1100), Cisco Integrated Services Router 4200 Series (ISR4K) running IOS-XE 17.3 - Cisco Systems, Inc. - Common Criteria CCEVS-VR-VID-11186-2021 - archived
- Cisco Catalyst Industrial Ethernet 3x00 Rugged Series (IE3200, IE3300, IE3400, IE3400H) Switches running IOS-XE 17.3 - Cisco Systems, Inc. - Common Criteria CCEVS-VR-VID-11177-2021 - archived
- Cisco Catalyst 9800 (40/80/L) Wireless Controllers running IOS-XE 16.12 - Cisco Systems, Inc. - FIPS 140 3883 - historical
See all 21 in the Security Certifications Explorer.
References
- https://github.com/orangecertcc/security-research/security/advisories/GHSA-7xfm-92p7-qc57(Exploit, Third Party Advisory)
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-xesdwcinj-t68PPW7m(Vendor Advisory)
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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