CVE-2019-1743: Cisco IOS XE Software Arbitrary File Upload Vulnerability

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-03-28 · updated 2026-06-17
Weakness: CWE-20

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.

Affected products

Cisco IOS XE: 16.2.1, 16.2.2, 16.3.1, 16.3.1a, 16.3.2, 16.3.3 (+25)

References

http://www.securityfocus.com/bid/107591
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190327-afu
http://www.securityfocus.com/bid/107591
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190327-afu

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