Path Traversal in Cisco iOS Xe Software
CVE-2021-1436
A vulnerability in the CLI of Cisco IOS XE SD-WAN Software could allow an authenticated, local attacker to conduct path traversal attacks and obtain read access to sensitive files on an affected system. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted request to an affected system. A successful exploit could allow the attacker to view arbitrary files on the affected system.
Vulnerability class: Path Traversal (Directory Traversal)
EPSS: 0.003 (23.7th 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 3.15.1xbs, 3.15.2xbs, 16.11.1
Weakness classification (CWE)
References
- psirt@cisco.com (x_refsource_CISCO, vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-1436?
- CVE-2021-1436 is a medium-severity vulnerability in Cisco iOS Xe Software, classified under Path Traversal. CVSS score: 4.4/10. Published 2021-03-24.
- How severe is CVE-2021-1436?
- Medium severity. CVSS v3 base score is 4.4 out of 10.