CVE-2025-20196

Description

A vulnerability in the Cisco IOx application hosting environment of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause the Cisco IOx application hosting environment to stop responding, resulting in a denial of service (DoS) condition. This vulnerability is due to the improper handling of HTTP requests. An attacker could exploit this vulnerability by sending crafted HTTP requests to an affected device. A successful exploit could allow the attacker to cause the Cisco IOx application hosting environment to stop responding. The IOx process will need to be manually restarted to recover services.

Reserved 2024-10-10 | Published 2025-05-07 | Updated 2025-05-07 | Assigner cisco

Problem types

Improper Restriction of Excessive Authentication Attempts

Product status

Any version
affected

16.1.1
affected

16.1.2
affected

16.1.3
affected

16.2.1
affected

16.2.2
affected

16.3.1
affected

16.3.2
affected

16.3.3
affected

16.3.1a
affected

16.3.4
affected

16.3.5
affected

16.3.5b
affected

16.3.6
affected

16.3.7
affected

16.3.8
affected

16.3.9
affected

16.3.10
affected

16.3.11
affected

16.4.1
affected

16.4.2
affected

16.4.3
affected

16.5.1
affected

16.5.1a
affected

16.5.1b
affected

16.5.2
affected

16.5.3
affected

17.1.1
affected

17.1.1a
affected

17.1.1s
affected

17.1.1t
affected

17.1.3
affected

17.2.1
affected

17.2.1r
affected

17.2.1a
affected

17.2.1v
affected

17.2.2
affected

17.2.3
affected

17.3.1
affected

17.3.2
affected

17.3.3
affected

17.3.1a
affected

17.3.1w
affected

17.3.2a
affected

17.3.1x
affected

17.3.1z
affected

17.3.4
affected

17.3.5
affected

17.3.4a
affected

17.3.6
affected

17.3.4b
affected

17.3.4c
affected

17.3.5a
affected

17.3.5b
affected

17.3.7
affected

17.3.8
affected

17.3.8a
affected

17.4.1
affected

17.4.2
affected

17.4.1a
affected

17.4.1b
affected

17.4.2a
affected

17.5.1
affected

17.5.1a
affected

17.6.1
affected

17.6.2
affected

17.6.1w
affected

17.6.1a
affected

17.6.1x
affected

17.6.3
affected

17.6.1y
affected

17.6.1z
affected

17.6.3a
affected

17.6.4
affected

17.6.1z1
affected

17.6.5
affected

17.6.6
affected

17.6.6a
affected

17.6.5a
affected

17.6.7
affected

17.6.8
affected

17.6.8a
affected

17.7.1
affected

17.7.1a
affected

17.7.1b
affected

17.7.2
affected

17.10.1
affected

17.10.1a
affected

17.10.1b
affected

17.8.1
affected

17.8.1a
affected

17.9.1
affected

17.9.1w
affected

17.9.2
affected

17.9.1a
affected

17.9.1x
affected

17.9.1y
affected

17.9.3
affected

17.9.2a
affected

17.9.1x1
affected

17.9.3a
affected

17.9.4
affected

17.9.1y1
affected

17.9.5
affected

17.9.4a
affected

17.9.5a
affected

17.9.5b
affected

17.9.6
affected

17.9.6a
affected

17.9.5e
affected

17.9.5f
affected

17.11.1
affected

17.11.1a
affected

17.12.1
affected

17.12.1w
affected

17.12.1a
affected

17.12.1x
affected

17.12.2
affected

17.12.3
affected

17.12.2a
affected

17.12.1y
affected

17.12.1z
affected

17.12.4
affected

17.12.3a
affected

17.12.1z1
affected

17.12.1z2
affected

17.12.4a
affected

17.12.4b
affected

17.12.1z4
affected

17.13.1
affected

17.13.1a
affected

17.14.1
affected

17.14.1a
affected

17.11.99SW
affected

17.15.2
affected

17.15.2c
affected

17.15.2a
affected

17.15.2b
affected

References

sec.cloudapps.cisco.com/...dvisory/cisco-sa-iox-dos-95Fqnf7b (cisco-sa-iox-dos-95Fqnf7b)

cve.org (CVE-2025-20196)

nvd.nist.gov (CVE-2025-20196)

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