Path Traversal in Cisco iOS Xe Software
CVE-2021-1435
A vulnerability in the web UI of Cisco IOS XE Software could allow an authenticated, remote attacker to inject arbitrary commands that can be executed as the root user. This vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by sending a crafted request to the web UI of an affected device with arbitrary commands injected into a portion of the request. A successful exploit could allow the attacker to execute arbitrary commands as the root user.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.081 (94.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 95th percentile — 94.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.081 · newest: 0.081 · change: 0.000
Affected products
- Cisco iOS Xe Software
- Cisco iOS Xe — versions 16.9.1, 16.9.1a, 16.9.1b
Weakness classification (CWE)
References
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-we… (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-1435?
- CVE-2021-1435 is a high-severity vulnerability in Cisco iOS Xe Software, classified under Path Traversal. CVSS score: 7.2/10. Published 2021-03-24.
- How severe is CVE-2021-1435?
- High severity. CVSS v3 base score is 7.2 out of 10.