CVE-2026-20113A vulnerability in the web-based Cisco IOx application hosting environment management interface of Cisco IOS XE Software could allow an…
- 5.3MediumCVSS base score
- 0.38%Exploitation in 30 daysEPSS · top 68% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
A vulnerability in the web-based Cisco IOx application hosting environment management interface of Cisco IOS XE Software could allow an unauthenticated, remote attacker to perform a carriage return line feed (CRLF) injection attack against a user. This vulnerability is due to insufficient validation of user input. An attacker could exploit this vulnerability by sending crafted packets to an affected device. A successful exploit could allow the attacker to arbitrarily inject log entries, manipulate the structure of log files, or obscure legitimate log events.
Timeline
ID reserved
By cisco
- 6 months later
· 6 months later
Published
- 2 days later
· 2 days later
Record updated
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:L/A:N |
| NVDNVD · Awaiting Analysis | 3.1 | Medium5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
- EPSS (exploitation in 30 days)
- 0.38% · top 68% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.3.
Affected products
- affected 16.6.1
- affected 16.6.2
- affected 16.6.3
- affected 16.6.4
- affected 16.6.5
- affected 16.6.4a
- affected 16.6.5a
- affected 16.6.6
- affected 16.6.7
- affected 16.6.8
- affected 16.6.9
- affected 16.6.10
- affected 16.7.1
- affected 16.7.1a
- affected 16.7.1b
- affected 16.7.2
- affected 16.7.3
- affected 16.7.4
- affected 16.8.1
- affected 16.8.1a
- affected 16.8.1b
- affected 16.8.1s
- affected 16.8.1c
- affected 16.8.1d
- affected 16.8.2
- affected 16.8.1e
- affected 16.8.3
- affected 16.9.1
- affected 16.9.2
- affected 16.9.1a
- affected 16.9.1b
- affected 16.9.1s
- affected 16.9.3
- affected 16.9.4
- affected 16.9.5
- affected 16.9.5f
- affected 16.9.6
- affected 16.9.7
- affected 16.9.8
- affected 16.10.1
- and 187 more
What to do
Exploitation: The Cisco Product Security Incident Response Team (PSIRT) is aware that a public announcement is available for the vulnerability that is described in this advisory. The Cisco PSIRT is not aware of any 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-2026-15443 (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-2026-20113)Record last updated .