CVE-2025-20221
A vulnerability in the packet filtering features of Cisco IOS XE SD-WAN Software could allow an unauthenticated, remote attacker to bypass Layer 3 and Layer 4 traffic filters. This vulnerability i
Severity
Medium 5.3
CVSS 3.1
Exploited
Not listed
EPSS
0.005
37.9th percentile
Discovered by
Third party
Published by the vendor
Published
May 7, 2025
Assigned by cisco
Description
A vulnerability in the packet filtering features of Cisco IOS XE SD-WAN Software could allow an unauthenticated, remote attacker to bypass Layer 3 and Layer 4 traffic filters. This vulnerability is due to improper traffic filtering conditions on an affected device. An attacker could exploit this vulnerability by sending a crafted packet to the affected device. A successful exploit could allow the attacker to bypass the Layer 3 and Layer 4 traffic filters and inject a crafted packet into the network.
Weakness: CWE-200
Affected products
| Vendor | Product | Category | Matched by |
|---|---|---|---|
| Cisco | Cisco IOS XE Software | Routing & Switching | cna-assigner |
Vendor-reported affected versions (1)
- Cisco · Cisco IOS XE Software