Vulnerability Monitor

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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 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.


Security Impact Summary

This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 5.3, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts limited data confidentiality, for affected systems. Impacting 1 product from cisco organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2025, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.


Published

2025-05-07T18:15:41.917

Last Modified

2025-07-11T14:43:38.090

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.1: 5.3 (MEDIUM)

Weaknesses
  • Type: Secondary
    CWE-200

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System cisco ios_xe 16.12.13 Yes
Operating System cisco ios_xe 17.1.1 Yes
Operating System cisco ios_xe 17.1.1s Yes
Operating System cisco ios_xe 17.1.1t Yes
Operating System cisco ios_xe 17.1.3 Yes
Operating System cisco ios_xe 17.2.1 Yes
Operating System cisco ios_xe 17.2.1a Yes
Operating System cisco ios_xe 17.2.1r Yes
Operating System cisco ios_xe 17.2.1v Yes
Operating System cisco ios_xe 17.2.2 Yes
Operating System cisco ios_xe 17.2.3 Yes
Operating System cisco ios_xe 17.3.1 Yes
Operating System cisco ios_xe 17.3.1a Yes
Operating System cisco ios_xe 17.3.2 Yes
Operating System cisco ios_xe 17.3.2a Yes
Operating System cisco ios_xe 17.3.3 Yes
Operating System cisco ios_xe 17.3.4 Yes
Operating System cisco ios_xe 17.3.4a Yes
Operating System cisco ios_xe 17.3.5 Yes
Operating System cisco ios_xe 17.3.6 Yes
Operating System cisco ios_xe 17.3.7 Yes
Operating System cisco ios_xe 17.3.8 Yes
Operating System cisco ios_xe 17.3.8a Yes
Operating System cisco ios_xe 17.4.1 Yes
Operating System cisco ios_xe 17.4.1a Yes
Operating System cisco ios_xe 17.4.1b Yes
Operating System cisco ios_xe 17.4.2 Yes
Operating System cisco ios_xe 17.5.1 Yes
Operating System cisco ios_xe 17.5.1a Yes
Operating System cisco ios_xe 17.6.1 Yes
Operating System cisco ios_xe 17.6.1a Yes
Operating System cisco ios_xe 17.6.1y Yes
Operating System cisco ios_xe 17.6.2 Yes
Operating System cisco ios_xe 17.6.3 Yes
Operating System cisco ios_xe 17.6.3a Yes
Operating System cisco ios_xe 17.6.4 Yes
Operating System cisco ios_xe 17.6.5 Yes
Operating System cisco ios_xe 17.6.5a Yes
Operating System cisco ios_xe 17.6.6 Yes
Operating System cisco ios_xe 17.6.6a Yes
Operating System cisco ios_xe 17.6.7 Yes
Operating System cisco ios_xe 17.6.8 Yes
Operating System cisco ios_xe 17.6.8a Yes
Operating System cisco ios_xe 17.7.1 Yes
Operating System cisco ios_xe 17.7.1a Yes
Operating System cisco ios_xe 17.7.2 Yes
Operating System cisco ios_xe 17.8.1 Yes
Operating System cisco ios_xe 17.8.1a Yes
Operating System cisco ios_xe 17.9.1 Yes
Operating System cisco ios_xe 17.9.1a Yes
Operating System cisco ios_xe 17.9.2 Yes
Operating System cisco ios_xe 17.9.2a Yes
Operating System cisco ios_xe 17.9.3 Yes
Operating System cisco ios_xe 17.9.3a Yes
Operating System cisco ios_xe 17.9.4 Yes
Operating System cisco ios_xe 17.9.4a Yes
Operating System cisco ios_xe 17.9.5 Yes
Operating System cisco ios_xe 17.9.5a Yes
Operating System cisco ios_xe 17.9.5b Yes
Operating System cisco ios_xe 17.9.5e Yes
Operating System cisco ios_xe 17.9.5f Yes
Operating System cisco ios_xe 17.9.6 Yes
Operating System cisco ios_xe 17.9.6a Yes
Operating System cisco ios_xe 17.10.1 Yes
Operating System cisco ios_xe 17.10.1a Yes
Operating System cisco ios_xe 17.10.1b Yes
Operating System cisco ios_xe 17.11.1 Yes
Operating System cisco ios_xe 17.11.1a Yes
Operating System cisco ios_xe 17.12.1 Yes
Operating System cisco ios_xe 17.12.1a Yes
Operating System cisco ios_xe 17.12.1z2 Yes
Operating System cisco ios_xe 17.12.2 Yes
Operating System cisco ios_xe 17.12.3 Yes
Operating System cisco ios_xe 17.12.3a Yes
Operating System cisco ios_xe 17.12.4 Yes
Operating System cisco ios_xe 17.12.4a Yes
Operating System cisco ios_xe 17.12.4b Yes
Operating System cisco ios_xe 17.13.1 Yes
Operating System cisco ios_xe 17.13.1a Yes
Operating System cisco ios_xe 17.14.1 Yes
Operating System cisco ios_xe 17.14.1a Yes
Operating System cisco ios_xe 17.15.1 Yes
Operating System cisco ios_xe 17.15.1a Yes
Operating System cisco ios_xe 17.15.1x Yes
Operating System cisco ios_xe 17.15.2 Yes
Operating System cisco ios_xe 17.15.2b Yes
Operating System cisco ios_xe 17.15.2c Yes
Operating System cisco ios_xe 17.16.1 Yes
Operating System cisco ios_xe 17.16.1a Yes

References

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For cisco's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.