Improper input validation in Cisco iOS Xe Software
CVE-2021-1383
Multiple vulnerabilities in the CLI of Cisco IOS XE SD-WAN Software could allow an authenticated, local attacker to access the underlying operating system with root privileges. These vulnerabilities are due to insufficient input validation of certain CLI commands. An attacker could exploit these vulnerabilities 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 access the underlying operating system with root privileges.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.0 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.006 (46.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 46.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Cisco iOS Xe Software
- Cisco iOS Xe — versions 16.9.1, 16.9.2, 16.9.3
- Cisco iOS Xe Sd-Wan
Weakness classification (CWE)
References
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-xesdwpin… (vendor-advisory, Vendor Advisory)
- github.com/orangecertcc/security-research/security/advisories/GHSA-vw54-f9mw-g4… (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-1383?
- CVE-2021-1383 is a medium-severity vulnerability in Cisco iOS Xe Software, classified under Improper Input Validation. CVSS score: 6.0/10. Published 2021-03-24.
- How severe is CVE-2021-1383?
- Medium severity. CVSS v3 base score is 6.0 out of 10.