Vulnerability in Cisco iOS Xe Software
CVE-2021-1434
A vulnerability in the CLI of Cisco IOS XE SD-WAN Software could allow an authenticated, local attacker to overwrite arbitrary files in the underlying file system. This vulnerability is due to insufficient validation of the parameters of a specific CLI command. An attacker could exploit this vulnerability by issuing that command with specific parameters. A successful exploit could allow the attacker to overwrite the content of any arbitrary file that resides on the underlying host file system.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.002 (12.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 12th percentile — 12.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Cisco iOS Xe Software
- Cisco iOS Xe — versions 16.11.1, 16.11.1a, 16.11.1b
Weakness classification (CWE)
References
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-ar… (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-1434?
- CVE-2021-1434 is a medium-severity vulnerability in Cisco iOS Xe Software, classified under Files or Directories Accessible to External Parties. CVSS score: 4.4/10. Published 2021-03-24.
- How severe is CVE-2021-1434?
- Medium severity. CVSS v3 base score is 4.4 out of 10.