CVE-2025-20221 — Cisco / Cisco IOS XE Software

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
Cisco / Cisco IOS XE Software	affected 16.12.13; affected 17.1.1; affected 17.1.1s; affected 17.1.1t; affected 17.1.3; affected 17.2.1; affected 17.2.1r; affected 17.2.1a; affected 17.2.1v; affected 17.2.2; affected 17.2.3; affected 17.3.1; affected 17.3.2; affected 17.3.3; affected 17.3.1a; affected 17.3.2a; affected 17.3.4; affected 17.3.5; affected 17.3.4a; affected 17.3.6; affected 17.3.7; affected 17.3.8; affected 17.3.8a; affected 17.4.1; affected 17.4.2; affected 17.4.1a; affected 17.4.1b; affected 17.5.1; affected 17.5.1a; affected 17.6.1; affected 17.6.2; affected 17.6.1a; affected 17.6.3; affected 17.6.1y; affected 17.6.3a; affected 17.6.4; affected 17.6.5; affected 17.6.6; affected 17.6.6a; affected 17.6.5a; affected 17.6.7; affected 17.6.8; affected 17.6.8a; affected 17.7.1; affected 17.7.1a; affected 17.7.2; affected 17.10.1; affected 17.10.1a; affected 17.10.1b; affected 17.8.1; affected 17.8.1a; affected 17.9.1; affected 17.9.2; affected 17.9.1a; affected 17.9.3; affected 17.9.2a; affected 17.9.3a; affected 17.9.4; affected 17.9.5; affected 17.9.4a; affected 17.9.5a; affected 17.9.5b; affected 17.9.6; affected 17.9.6a; affected 17.9.5e; affected 17.9.5f; affected 17.11.1; affected 17.11.1a; affected 17.12.1; affected 17.12.1a; affected 17.12.2; affected 17.12.3; affected 17.12.4; affected 17.12.3a; affected 17.12.1z2; affected 17.12.4a; affected 17.12.4b; affected 17.13.1; affected 17.13.1a; affected 17.14.1; affected 17.14.1a; affected 17.15.1; affected 17.15.1a; affected 17.15.2; affected 17.15.1x; affected 17.15.2c; affected 17.15.2b; affected 17.16.1; affected 17.16.1a

Vendor / product

Versions

Cisco / Cisco IOS XE Software

affected 16.12.13; affected 17.1.1; affected 17.1.1s; affected 17.1.1t; affected 17.1.3; affected 17.2.1; affected 17.2.1r; affected 17.2.1a; affected 17.2.1v; affected 17.2.2; affected 17.2.3; affected 17.3.1; affected 17.3.2; affected 17.3.3; affected 17.3.1a; affected 17.3.2a; affected 17.3.4; affected 17.3.5; affected 17.3.4a; affected 17.3.6; affected 17.3.7; affected 17.3.8; affected 17.3.8a; affected 17.4.1; affected 17.4.2; affected 17.4.1a; affected 17.4.1b; affected 17.5.1; affected 17.5.1a; affected 17.6.1; affected 17.6.2; affected 17.6.1a; affected 17.6.3; affected 17.6.1y; affected 17.6.3a; affected 17.6.4; affected 17.6.5; affected 17.6.6; affected 17.6.6a; affected 17.6.5a; affected 17.6.7; affected 17.6.8; affected 17.6.8a; affected 17.7.1; affected 17.7.1a; affected 17.7.2; affected 17.10.1; affected 17.10.1a; affected 17.10.1b; affected 17.8.1; affected 17.8.1a; affected 17.9.1; affected 17.9.2; affected 17.9.1a; affected 17.9.3; affected 17.9.2a; affected 17.9.3a; affected 17.9.4; affected 17.9.5; affected 17.9.4a; affected 17.9.5a; affected 17.9.5b; affected 17.9.6; affected 17.9.6a; affected 17.9.5e; affected 17.9.5f; affected 17.11.1; affected 17.11.1a; affected 17.12.1; affected 17.12.1a; affected 17.12.2; affected 17.12.3; affected 17.12.4; affected 17.12.3a; affected 17.12.1z2; affected 17.12.4a; affected 17.12.4b; affected 17.13.1; affected 17.13.1a; affected 17.14.1; affected 17.14.1a; affected 17.15.1; affected 17.15.1a; affected 17.15.2; affected 17.15.1x; affected 17.15.2c; affected 17.15.2b; affected 17.16.1; affected 17.16.1a

CWE

CWE-200

References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snmp-bypass-HHUVujdn

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.