CVE-2025-20196A vulnerability in the Cisco IOx application hosting environment of Cisco IOS Software and Cisco IOS XE Software could allow an…
- 5.3MediumCVSS base score
- 0.43%Exploitation in 30 daysEPSS · top 63% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By cisco
- 7 months later
· 7 months later
Published
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| ciscoCNA (assigner) | 3.1 | Medium5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
| NVDNVD · Analyzed | 3.1 | Medium5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
- EPSS (exploitation in 30 days)
- 0.43% · top 63% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.3.
Affected products
- affected N/A
- 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
- and 97 more
What to do
Exploitation: The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.
References
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2025-13896 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2025-20196)Record last updated .