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CVE-2022-20761


A vulnerability in the integrated wireless access point (AP) packet processing of the Cisco 1000 Series Connected Grid Router (CGR1K) could allow an unauthenticated, adjacent attacker to cause a denial of service condition on an affected device. This vulnerability is due to insufficient input validation of received traffic. An attacker could exploit this vulnerability by sending crafted traffic to an affected device. A successful exploit could allow the attacker to cause the integrated AP to stop processing traffic, resulting in a DoS condition. It may be necessary to manually reload the CGR1K to restore AP operation.


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

2022-04-15T15:15:13.933

Last Modified

2024-11-21T06:43:30.027

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-248
  • Type: Primary
    CWE-20

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System cisco ios 15.4\(1\)cg Yes
Operating System cisco ios 15.4\(2\)cg Yes
Operating System cisco ios 15.4\(3\)m Yes
Operating System cisco ios 15.4\(3\)m1 Yes
Operating System cisco ios 15.4\(3\)m2 Yes
Operating System cisco ios 15.4\(3\)m3 Yes
Operating System cisco ios 15.4\(3\)m4 Yes
Operating System cisco ios 15.4\(3\)m5 Yes
Operating System cisco ios 15.4\(3\)m6 Yes
Operating System cisco ios 15.4\(3\)m6a Yes
Operating System cisco ios 15.4\(3\)m7 Yes
Operating System cisco ios 15.4\(3\)m8 Yes
Operating System cisco ios 15.4\(3\)m9 Yes
Operating System cisco ios 15.4\(3\)m10 Yes
Operating System cisco ios 15.5\(1\)t Yes
Operating System cisco ios 15.5\(1\)t2 Yes
Operating System cisco ios 15.5\(1\)t3 Yes
Operating System cisco ios 15.5\(1\)t4 Yes
Operating System cisco ios 15.5\(2\)t Yes
Operating System cisco ios 15.5\(2\)t1 Yes
Operating System cisco ios 15.5\(2\)t2 Yes
Operating System cisco ios 15.5\(2\)t3 Yes
Operating System cisco ios 15.5\(2\)t4 Yes
Operating System cisco ios 15.5\(3\)m Yes
Operating System cisco ios 15.5\(3\)m1 Yes
Operating System cisco ios 15.5\(3\)m2 Yes
Operating System cisco ios 15.5\(3\)m2a Yes
Operating System cisco ios 15.5\(3\)m3 Yes
Operating System cisco ios 15.5\(3\)m4 Yes
Operating System cisco ios 15.5\(3\)m4a Yes
Operating System cisco ios 15.5\(3\)m5 Yes
Operating System cisco ios 15.5\(3\)m6 Yes
Operating System cisco ios 15.5\(3\)m6a Yes
Operating System cisco ios 15.5\(3\)m7 Yes
Operating System cisco ios 15.5\(3\)m8 Yes
Operating System cisco ios 15.5\(3\)m9 Yes
Operating System cisco ios 15.5\(3\)m10 Yes
Operating System cisco ios 15.6\(1\)t Yes
Operating System cisco ios 15.6\(1\)t0a Yes
Operating System cisco ios 15.6\(1\)t1 Yes
Operating System cisco ios 15.6\(1\)t2 Yes
Operating System cisco ios 15.6\(1\)t3 Yes
Operating System cisco ios 15.6\(2\)t Yes
Operating System cisco ios 15.6\(2\)t1 Yes
Operating System cisco ios 15.6\(2\)t2 Yes
Operating System cisco ios 15.6\(2\)t3 Yes
Operating System cisco ios 15.6\(3\)m Yes
Operating System cisco ios 15.6\(3\)m0a Yes
Operating System cisco ios 15.6\(3\)m1 Yes
Operating System cisco ios 15.6\(3\)m1b Yes
Operating System cisco ios 15.6\(3\)m2 Yes
Operating System cisco ios 15.6\(3\)m3 Yes
Operating System cisco ios 15.6\(3\)m3a Yes
Operating System cisco ios 15.6\(3\)m4 Yes
Operating System cisco ios 15.6\(3\)m5 Yes
Operating System cisco ios 15.6\(3\)m6 Yes
Operating System cisco ios 15.6\(3\)m6a Yes
Operating System cisco ios 15.6\(3\)m7 Yes
Operating System cisco ios 15.6\(3\)m8 Yes
Operating System cisco ios 15.7\(3\)m Yes
Operating System cisco ios 15.7\(3\)m1 Yes
Operating System cisco ios 15.7\(3\)m2 Yes
Operating System cisco ios 15.7\(3\)m3 Yes
Operating System cisco ios 15.7\(3\)m4 Yes
Operating System cisco ios 15.7\(3\)m4a Yes
Operating System cisco ios 15.7\(3\)m5 Yes
Operating System cisco ios 15.7\(3\)m6 Yes
Operating System cisco ios 15.8\(3\)m Yes
Operating System cisco ios 15.8\(3\)m0a Yes
Operating System cisco ios 15.8\(3\)m1 Yes
Operating System cisco ios 15.8\(3\)m2 Yes
Operating System cisco ios 15.8\(3\)m3a Yes
Operating System cisco ios 15.8\(3\)m3b Yes
Operating System cisco ios 15.8\(3\)m4 Yes
Operating System cisco ios 15.8\(3\)m5 Yes
Operating System cisco ios 15.8\(3\)m6 Yes
Operating System cisco ios 15.8\(3\)m7 Yes
Operating System cisco ios 15.9\(3\)m Yes
Operating System cisco ios 15.9\(3\)m0a Yes
Operating System cisco ios 15.9\(3\)m1 Yes
Operating System cisco ios 15.9\(3\)m2 Yes
Operating System cisco ios 15.9\(3\)m3 Yes
Operating System cisco ios 15.9\(3\)m3a Yes
Operating System cisco ios 15.9\(3\)m3b Yes
Operating System cisco ios 15.9\(3\)m4 Yes
Operating System cisco ios 15.9\(3\)m4a 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.