Vulnerability Monitor

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CVE-2022-20684


A vulnerability in Simple Network Management Protocol (SNMP) trap generation for wireless clients of Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family could allow an unauthenticated, adjacent attacker to cause an affected device to unexpectedly reload, resulting in a denial of service (DoS) condition on the device. This vulnerability is due to a lack of input validation of the information used to generate an SNMP trap related to a wireless client connection event. An attacker could exploit this vulnerability by sending an 802.1x packet with crafted parameters during the wireless authentication setup phase of a connection. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.


Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.4, indicating it requires adjacent network access with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts and availability (service disruption) for affected systems. Impacting 1 product from cisco organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2022, 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

2022-04-15T15:15:12.720

Last Modified

2024-11-21T06:43:19.027

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.4 (HIGH)

CVSSv2 Vector

AV:A/AC:L/Au:N/C:N/I:N/A:C

  • Access Vector: ADJACENT_NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: COMPLETE
Exploitability Score

6.5

Impact Score

6.9

Weaknesses
  • Type: Secondary
    CWE-190
  • Type: Primary
    CWE-20

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System cisco ios_xe 3.15.1xbs Yes
Operating System cisco ios_xe 3.15.2xbs Yes
Operating System cisco ios_xe 16.6.1 Yes
Operating System cisco ios_xe 16.6.2 Yes
Operating System cisco ios_xe 16.6.3 Yes
Operating System cisco ios_xe 16.6.4 Yes
Operating System cisco ios_xe 16.6.4a Yes
Operating System cisco ios_xe 16.6.4s Yes
Operating System cisco ios_xe 16.6.5 Yes
Operating System cisco ios_xe 16.6.5a Yes
Operating System cisco ios_xe 16.6.5b Yes
Operating System cisco ios_xe 16.6.6 Yes
Operating System cisco ios_xe 16.6.7 Yes
Operating System cisco ios_xe 16.6.7a Yes
Operating System cisco ios_xe 16.6.8 Yes
Operating System cisco ios_xe 16.6.9 Yes
Operating System cisco ios_xe 16.6.10 Yes
Operating System cisco ios_xe 16.7.1 Yes
Operating System cisco ios_xe 16.7.1a Yes
Operating System cisco ios_xe 16.7.1b Yes
Operating System cisco ios_xe 16.7.2 Yes
Operating System cisco ios_xe 16.7.3 Yes
Operating System cisco ios_xe 16.7.4 Yes
Operating System cisco ios_xe 16.8.1 Yes
Operating System cisco ios_xe 16.8.1a Yes
Operating System cisco ios_xe 16.8.1b Yes
Operating System cisco ios_xe 16.8.1c Yes
Operating System cisco ios_xe 16.8.1d Yes
Operating System cisco ios_xe 16.8.1e Yes
Operating System cisco ios_xe 16.8.1s Yes
Operating System cisco ios_xe 16.8.2 Yes
Operating System cisco ios_xe 16.8.3 Yes
Operating System cisco ios_xe 16.9.1 Yes
Operating System cisco ios_xe 16.9.1a Yes
Operating System cisco ios_xe 16.9.1b Yes
Operating System cisco ios_xe 16.9.1c Yes
Operating System cisco ios_xe 16.9.1d Yes
Operating System cisco ios_xe 16.9.1s Yes
Operating System cisco ios_xe 16.9.2 Yes
Operating System cisco ios_xe 16.9.2a Yes
Operating System cisco ios_xe 16.9.2s Yes
Operating System cisco ios_xe 16.9.3 Yes
Operating System cisco ios_xe 16.9.3a Yes
Operating System cisco ios_xe 16.9.3h Yes
Operating System cisco ios_xe 16.9.3s Yes
Operating System cisco ios_xe 16.9.4 Yes
Operating System cisco ios_xe 16.9.4c Yes
Operating System cisco ios_xe 16.9.5 Yes
Operating System cisco ios_xe 16.9.5f Yes
Operating System cisco ios_xe 16.9.6 Yes
Operating System cisco ios_xe 16.9.7 Yes
Operating System cisco ios_xe 16.9.8 Yes
Operating System cisco ios_xe 16.10.1 Yes
Operating System cisco ios_xe 16.10.1a Yes
Operating System cisco ios_xe 16.10.1b Yes
Operating System cisco ios_xe 16.10.1c Yes
Operating System cisco ios_xe 16.10.1d Yes
Operating System cisco ios_xe 16.10.1e Yes
Operating System cisco ios_xe 16.10.1f Yes
Operating System cisco ios_xe 16.10.1g Yes
Operating System cisco ios_xe 16.10.1s Yes
Operating System cisco ios_xe 16.10.2 Yes
Operating System cisco ios_xe 16.10.3 Yes
Operating System cisco ios_xe 16.11.1 Yes
Operating System cisco ios_xe 16.11.1a Yes
Operating System cisco ios_xe 16.11.1b Yes
Operating System cisco ios_xe 16.11.1c Yes
Operating System cisco ios_xe 16.11.1s Yes
Operating System cisco ios_xe 16.11.2 Yes
Operating System cisco ios_xe 16.12.1 Yes
Operating System cisco ios_xe 16.12.1a Yes
Operating System cisco ios_xe 16.12.1c Yes
Operating System cisco ios_xe 16.12.1s Yes
Operating System cisco ios_xe 16.12.1t Yes
Operating System cisco ios_xe 16.12.1w Yes
Operating System cisco ios_xe 16.12.1x Yes
Operating System cisco ios_xe 16.12.1y Yes
Operating System cisco ios_xe 16.12.1z Yes
Operating System cisco ios_xe 16.12.1z1 Yes
Operating System cisco ios_xe 16.12.1z2 Yes
Operating System cisco ios_xe 16.12.2 Yes
Operating System cisco ios_xe 16.12.2a Yes
Operating System cisco ios_xe 16.12.2s Yes
Operating System cisco ios_xe 16.12.2t Yes
Operating System cisco ios_xe 17.1.1 Yes
Operating System cisco ios_xe 17.1.1a Yes
Operating System cisco ios_xe 17.1.1s Yes
Operating System cisco ios_xe 17.1.1t Yes
Operating System cisco ios_xe 17.1.2 Yes
Operating System cisco ios_xe 17.1.3 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.