CVE-2022-20624: cisco cisco nx-os software Uncontrolled Resource Consumption
Vulnerability summary
CVE-2022-20624 is a high (CVSS 8.6) Uncontrolled Resource Consumption vulnerability in cisco cisco nx-os software. EPSS estimates a 12.40% chance of exploitation in the next 30 days, higher than 96.1% of scored vulnerabilities.
Timeline
- 23-02-2022PublishedVulnerability first disclosed.
- 06-11-2024Last modifiedVulnerability information updated.
Description
A vulnerability in the Cisco Fabric Services over IP (CFSoIP) feature of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient validation of incoming CFSoIP packets. An attacker could exploit this vulnerability by sending crafted CFSoIP packets to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition.
CVSS metrics
3 scores · 2 sources · 2 versions- NVDNIST7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HDiffers
EPSS trend
Probability
12.40%
Chance of exploitation in the next 30 days
Percentile
96%
Versus all other CVEs
30-day change
0.00 pp
From 12.40% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-400Uncontrolled Resource ConsumptionThe product does not properly control the allocation and maintenance of a limited resource.
- CWE-20Improper Input ValidationThe product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
Affected systems
Cisco2 products
- cisco nx-os softwaren/a
- nx-os7.0\(3\) | 9.2\(2\) | 9.2\(3\) | 9.3\(3\) | 9.3\(5\) | 4.1\(1a\)a
1 vendor · 2 products
References
1 links- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cfsoip-dos-tpykyDrVendor AdvisoryX Refsource CISCO