CVE-2026-20083
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
6th
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.
| CWE | CWE-235 |
| Vendor | cisco |
| Product | cisco ios xe software |
| Ecosystems | |
| Industries | NetworkingTelecommunications |
| Published | Mar 25, 2026 |
| Last Updated | Mar 27, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
Cisco / Cisco IOS XE Software
3.5.0E 3.5.1E 3.5.2E 3.5.3E 3.11.1S 3.11.2S 3.11.0S 3.11.3S 3.11.4S 3.12.0S 3.12.1S 3.12.2S 3.12.3S 3.12.0aS 3.12.4S 3.13.0S 3.13.1S 3.13.2S 3.13.3S 3.13.4S 3.13.5S 3.13.2aS 3.13.0aS 3.13.5aS 3.13.6S 3.13.7S 3.13.6aS 3.6.0E 3.6.1E 3.6.2aE 3.6.2E 3.6.3E 3.6.4E 3.6.5E 3.6.6E 3.6.5aE 3.14.0S 3.14.1S 3.14.2S 3.14.3S 3.14.4S 3.15.0S 3.15.1S 3.15.2S 3.15.1cS 3.15.3S 3.15.4S 3.7.0E 3.7.1E 3.7.2E 3.7.3E 3.7.4E 3.7.5E 3.16.0S 3.16.1S 3.16.1aS 3.16.2S 3.16.2aS 3.16.0cS 3.16.3S 3.16.2bS 3.16.3aS 3.16.4S 3.16.4aS 3.16.4bS 3.16.5S 3.16.4dS 3.17.0S 3.17.1S 3.17.2S 3.17.1aS 3.17.3S 3.8.0E 3.8.1E 3.8.2E 3.8.3E 3.18.0aS 3.18.0S 3.18.1S 3.18.2S 3.18.0SP 3.18.1SP 3.18.1aSP 3.18.1bSP 3.18.1cSP 3.9.0E 3.9.1E 16.6.1 16.6.2 16.6.3 16.6.4 16.6.5 16.6.4a 16.6.5a 16.6.6 16.6.7 16.6.8 16.6.9 16.6.10 16.7.1 16.7.1a 16.7.1b 16.7.2 16.7.3 16.7.4 16.8.1 16.8.1a 16.8.1b 16.8.1s 16.8.1c 16.8.1d 16.8.2 16.8.1e 16.8.3 16.9.1 16.9.2 16.9.1a 16.9.1b 16.9.1s 16.9.3 16.9.4 16.9.3a 16.9.5 16.9.5f 16.9.6 16.9.7 16.9.8 16.10.1 16.10.1a 16.10.1b 16.10.1s 16.10.1c 16.10.1e 16.10.1d 16.10.2 16.10.1f 16.10.1g 16.10.3 16.11.1 16.11.1a 16.11.1b 16.11.2 16.11.1s 16.12.1 16.12.1s 16.12.1a 16.12.1c 16.12.1w 16.12.2 16.12.1y 16.12.2a 16.12.3 16.12.8 16.12.2s 16.12.1x 16.12.1t 16.12.4 16.12.3s 16.12.3a 16.12.4a 16.12.5 16.12.6 16.12.1z1 16.12.5a 16.12.5b 16.12.1z2 16.12.6a 16.12.7 16.12.9 16.12.10 16.12.10a 16.12.11 16.12.12 16.12.13 16.12.14 17.1.1 17.1.1a 17.1.1s 17.1.1t 17.1.3 17.2.1 17.2.1r 17.2.1a 17.2.1v 17.2.2 17.2.3 17.3.1 17.3.2 17.3.3 17.3.1a 17.3.1w 17.3.2a 17.3.1x 17.3.1z 17.3.4 17.3.5 17.3.4a 17.3.6 17.3.4b 17.3.4c 17.3.5a 17.3.5b 17.3.7 17.3.8 17.3.8a 17.4.1 17.4.2 17.4.1a 17.4.1b 17.4.2a 17.5.1 17.5.1a 17.6.1 17.6.2 17.6.1w 17.6.1a 17.6.1x 17.6.3 17.6.1y 17.6.1z 17.6.3a 17.6.4 17.6.1z1 17.6.5 17.6.6 17.6.6a 17.6.5a 17.6.7 17.6.8 17.6.8a 17.7.1 17.7.1a 17.7.1b 17.7.2 17.10.1 17.10.1a 17.10.1b 17.8.1 17.8.1a 17.9.1 17.9.1w 17.9.2 17.9.1a 17.9.1x 17.9.1y 17.9.3 17.9.2a 17.9.1x1 17.9.3a 17.9.4 17.9.1y1 17.9.5 17.9.4a 17.9.5a 17.9.5b 17.9.6 17.9.6a 17.9.7 17.9.5e 17.9.5f 17.9.8 17.9.7a 17.9.7b 17.11.1 17.11.1a 17.12.1 17.12.1w 17.12.1a 17.12.1x 17.12.2 17.12.3 17.12.2a 17.12.1y 17.12.1z 17.12.4 17.12.3a 17.12.1z1 17.12.1z2 17.12.4a 17.12.5 17.12.4b 17.12.1z3 17.12.5a 17.12.1z4 17.12.6 17.12.5b 17.12.5c 17.12.6a 17.12.5d 17.12.6b 17.13.1 17.13.1a 17.14.1 17.14.1a 17.15.1 17.15.1w 17.15.1a 17.15.2 17.15.1b 17.15.1x 17.15.1z 17.15.3 17.15.2c 17.15.2a 17.15.1y 17.15.2b 17.15.3a 17.15.4 17.15.3b 17.15.4d 17.15.4e 17.16.1 17.16.1a 17.17.1 17.18.1 17.18.1w 17.18.1a