CVE-2019-1743

Name: CVE-2019-1743
Creator: NVD / NIST
Published: 2019-03-28T00:29:00.483+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 2.21%

Last modified Jun 17, 2026

CVE-2019-1743 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. A vulnerability in the web UI framework of Cisco IOS XE Software could allow an authenticated, remote attacker to make unauthorized changes to the filesystem of the affected device. The vulnerability is due to improper input validation. EPSS estimates a 2.21% chance of exploitation in the next 30 days.

Description

A vulnerability in the web UI framework of Cisco IOS XE Software could allow an authenticated, remote attacker to make unauthorized changes to the filesystem of the affected device. The vulnerability is due to improper input validation. An attacker could exploit this vulnerability by crafting a malicious file and uploading it to the device. An exploit could allow the attacker to gain elevated privileges on the affected device.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

2.21%

80.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Cisco	Ios Xe	16.2.1
Cisco	Ios Xe	16.2.2
Cisco	Ios Xe	16.3.1
Cisco	Ios Xe	16.3.1a
Cisco	Ios Xe	16.3.2
Cisco	Ios Xe	16.3.3
Cisco	Ios Xe	16.3.4
Cisco	Ios Xe	16.3.5
Cisco	Ios Xe	16.3.5b
Cisco	Ios Xe	16.3.6
Cisco	Ios Xe	16.4.1
Cisco	Ios Xe	16.4.2
Cisco	Ios Xe	16.4.3
Cisco	Ios Xe	16.5.1
Cisco	Ios Xe	16.5.1a
Cisco	Ios Xe	16.5.1b
Cisco	Ios Xe	16.5.2
Cisco	Ios Xe	16.5.3
Cisco	Ios Xe	16.6.1
Cisco	Ios Xe	16.6.2
Cisco	Ios Xe	16.6.3
Cisco	Ios Xe	16.7.1
Cisco	Ios Xe	16.7.1a
Cisco	Ios Xe	16.7.1b
Cisco	Ios Xe	16.8.1
Cisco	Ios Xe	16.8.1a
Cisco	Ios Xe	16.8.1b
Cisco	Ios Xe	16.8.1c
Cisco	Ios Xe	16.8.1d
Cisco	Ios Xe	16.8.1e
Cisco	Ios Xe	16.8.1s

References

http://www.securityfocus.com/bid/107591Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190327-afuPatch, Vendor Advisory
http://www.securityfocus.com/bid/107591Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190327-afuPatch, Vendor Advisory

Timeline

Published: Mar 28, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-1743?

How severe is CVE-2019-1743?

CVE-2019-1743 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 2.21% probability of exploitation in the next 30 days.

How do I fix CVE-2019-1743?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-1743?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST