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
Description
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.
Weakness: CWE-235
Affected products
| Vendor | Product | Category | Matched by |
|---|---|---|---|
| Cisco | Cisco IOS XE Software | Routing & Switching | cna-assigner |
Vendor-reported products (1)
- Cisco · Cisco IOS XE Software
Vendor advisory
Cisco IOS XE Software Secure Copy Protocol Server Denial of Service Vulnerability
Cisco’s rating: Medium (advisory CVSS 6.5) · Published Mar 25, 2026
Bug ID: CSCwr59895
The vendor’s rating applies to the whole advisory and can differ from this CVE’s own CVSS severity. Where this comes from