Is CVE-2019-12667 being actively exploited?

CVE-2019-12667 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2019-12667?

CVE-2019-12667 has a CVSS 3.1 base score of 4.8 (MEDIUM).

CVE-2019-12667

MEDIUM · CVSS 4.8EPSS 0.8%EU EUVD

A vulnerability in the web framework code of Cisco IOS XE Software could allow an authenticated, remote attacker to conduct a stored cross-site scripting (XSS) attack against a user of the web interface of the affected software. The vulnerability is due to insufficient input validation of some parameters that are passed to the web server of the affected software. An attacker could exploit this vulnerability by convincing a user of the web interface to access a malicious link or by intercepting a user request for the affected web interface and injecting malicious code into the request. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected web interface or allow the attacker to access sensitive browser-based information.

Key facts

CVSS score: 4.8 (v3.1)
Severity: MEDIUM
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Weakness (CWE): CWE-79
EPSS score: 0.8% (56th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2019-4258)
Published: September 25, 2019
NVD last modified: June 17, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2019-4258 in the EU Vulnerability Database. Last updated in EUVD on November 21, 2024.

View on the EU Vulnerability Database

Affected products

cisco / ios xe

Certified products that may be affected

5 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.

Cisco ASR 900 Series and NCS4200 Series running IOS-XE 16.9 - Cisco Systems, Inc. - Common Criteria IC3S/MUM01/CISCO/cPP/0119/0016 - archived
Cisco Catalyst 9200L and 9400 Series Switches running IOS-XE 16.9 - Cisco Systems, Inc. - Common Criteria CCEVS-VR-VID-10972-2019 - archived
Cisco Aggregation Services Router 1004 (ASR1K) running IOS-XE 16.9 - Cisco Systems, Inc. - Common Criteria CCEVS-VR-VID-10950-2019 - archived
Cisco Catalyst 3650 and 3850 Series Switches running IOS-XE 16.9 - Cisco Systems, Inc. - Common Criteria CCEVS-VR-VID-10940-2019 - archived
Cisco Catalyst 9400 Series Switches running IOS-XE 16.6 - Cisco Systems, Inc. - Common Criteria CCEVS-VR-VID-10863-2018 - archived

References

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190925-xss(Vendor Advisory)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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