Vulnerability in Cisco iOS Xe Software
CVE-2026-20083
A vulnerability in the Secure Copy Protocol (SCP) server feature of Cisco IOS XE Software could allow an authenticated, local attacker with low privileges to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper handling of a malformed SCP request. An attacker could exploit this vulnerability by issuing a crafted command through SSH. A successful exploit could allow the attacker to cause the device to reload unexpectedly, resulting in a DoS condition.
EPSS: 0.001 (0.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H.
Affected products
- Cisco Ios Xe Software — versions 3.5.0E, 3.5.1E, 3.5.2E
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-20083?
- CVE-2026-20083 is a medium-severity vulnerability in Cisco iOS Xe Software, classified under CWE-235. CVSS score: 6.5/10. Published 2026-03-25.
- How severe is CVE-2026-20083?
- Medium severity. CVSS v3 base score is 6.5 out of 10.