CVE-2025-20221

CWE-200 — Information Exposure4 documents4 sources
Severity
9.1CRITICAL
EPSS
0.1%
top 71.59%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Cisco Cisco IOS XE SoftwareCisco IOS XE
Timeline
PublishedMay 7

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 netw…

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:NExploitability: 3.9 | Impact: 1.4

Affected Packages2 packages

▶CVEListV5cisco/cisco_ios_xe_software89 versions+88
▶NVDcisco/ios_xe89 versions+88

🔴Vulnerability Details

2
CVEList
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↗2025-05-07
▶
GHSA
GHSA-5983-2qrf-rph2: 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↗2025-05-07
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📋Vendor Advisories

1
Cisco
Cisco IOS XE SD-WAN Software Packet Filtering Bypass Vulnerability↗2025-05-07
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