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.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Cisco Cisco IOS XE Software affected
Version Status Constraints
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 affected —
16.10.1a affected —
16.10.1b affected —
16.10.1s affected —
16.10.1c affected —
16.10.1e affected —
16.10.1d affected —
16.10.2 affected —
16.10.1f affected —
16.10.1g affected —
16.10.3 affected —
16.11.1 affected —
16.11.1a affected —
16.11.1b affected —
16.11.2 affected —
16.11.1s affected —
16.12.1 affected —
16.12.1s affected —
16.12.1a affected —
16.12.1c affected —
16.12.1w affected —
16.12.2 affected —
16.12.1y affected —
16.12.2a affected —
16.12.3 affected —
16.12.8 affected —
16.12.2s affected —
16.12.1x affected —
16.12.1t affected —
16.12.4 affected —
16.12.3s affected —
16.12.3a affected —
16.12.4a affected —
16.12.5 affected —
16.12.6 affected —
16.12.1z1 affected —
16.12.5a affected —
16.12.5b affected —
16.12.1z2 affected —
16.12.6a affected —
16.12.7 affected —
16.12.10a affected —
16.12.11 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 —
17.9.7 affected —
17.9.5e affected —
17.9.5f affected —
17.9.8 affected —
17.9.7a affected —
17.9.7b 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 —
17.12.5 affected —
17.12.4b affected —
17.12.1z3 affected —
17.12.5a affected —
17.12.1z4 affected —
17.12.6 affected —
17.12.5b affected —
17.12.5c affected —
17.12.6a affected —
17.12.5d affected —
17.12.1z5 affected —
17.12.1z6 affected —
17.12.6b affected —
17.13.1 affected —
17.13.1a affected —
17.14.1 affected —
17.14.1a affected —
17.15.1 affected —
17.15.1w affected —
17.15.1a affected —
17.15.2 affected —
17.15.1b affected —
17.15.1x affected —
17.15.1z affected —
17.15.3 affected —
17.15.2c affected —
17.15.2a affected —
17.15.1y affected —
17.15.2b affected —
17.15.3a affected —
17.15.4 affected —
17.15.3b affected —
17.15.4d affected —
17.15.4e affected —
17.16.1 affected —
17.16.1a affected —
17.17.1 affected —
17.18.1 affected —
17.18.1w affected —
17.18.1a affected —
17.18.1x affected —

No data.

No data.

No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iox-crlf-NvgKTKJZ cve-icon cve-icon
History

Wed, 25 Mar 2026 16:15:00 +0000

Type Values Removed Values Added
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.
Weaknesses CWE-93
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published:

Updated: 2026-03-25T16:08:39.046Z

Reserved: 2025-10-08T11:59:15.375Z

Link: CVE-2026-20113

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-03-25T16:16:15.637

Modified: 2026-03-25T16:16:15.637

Link: CVE-2026-20113

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses