Vulnerability in Cisco iOS Xe Software
CVE-2021-1281
A vulnerability in CLI management in Cisco IOS XE SD-WAN Software could allow an authenticated, local attacker to access the underlying operating system as the root user. This vulnerability is due to the way the software handles concurrent CLI sessions. An attacker could exploit this vulnerability by authenticating to the device as an administrative user and executing a sequence of commands. A successful exploit could allow the attacker to obtain access to the underlying operating system as the root user.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.1 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:N.
EPSS exploit prediction
EPSS: 0.003 (18.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 18th percentile — 18.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Cisco iOS Xe Software
- Cisco iOS Xe — versions 16.9.1, 16.9.2, 16.9.3
Weakness classification (CWE)
References
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-cl… (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-1281?
- CVE-2021-1281 is a medium-severity vulnerability in Cisco iOS Xe Software, classified under CWE-399. CVSS score: 5.1/10. Published 2021-03-24.
- How severe is CVE-2021-1281?
- Medium severity. CVSS v3 base score is 5.1 out of 10.