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.

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.

EPSS: 0.002 (14.0th percentile) — read the EPSS interpretation.

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.

Affected products

Cisco Ios Xe Software — versions n/a
Cisco Ios_xe — versions 16.11.1, 16.11.1a, 16.11.1b

Weakness classification (CWE)

CWE-552 — Files or Directories Accessible to External Parties

References

psirt@cisco.com (x_refsource_CISCO, 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.