Cisco Meraki IOS XE Remote Config Leak via Insecure Tunnel
CVE-2026-20115 Published on March 25, 2026
A vulnerability in Cisco IOS XE Software for Cisco Meraki could allow a remote, unauthenticated attacker to view confidential device information. This vulnerability is due to a device configuration upload being performed over an insecure tunnel. An attacker could exploit this vulnerability by conducting an on-path attack between the affected device and the Cisco Meraki Dashboard. A successful exploit could allow the attacker to view sensitive device configuration information.
Vulnerability Analysis
CVE-2026-20115 can be exploited with network access, requires user interaction. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality, with no impact on integrity and availability.
Weakness Type
Cleartext Transmission of Sensitive Information
The software transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors. Many communication channels can be "sniffed" by attackers during data transmission. For example, network traffic can often be sniffed by any attacker who has access to a network interface. This significantly lowers the difficulty of exploitation by attackers.
Products Associated with CVE-2026-20115
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Affected Versions
Cisco IOS XE Software:- Version 17.14.1 is affected.
- Version 17.14.1a is affected.
- Version 17.15.1 is affected.
- Version 17.15.1w is affected.
- Version 17.15.1a is affected.
- Version 17.15.2 is affected.
- Version 17.15.1b is affected.
- Version 17.15.1x is affected.
- Version 17.15.1z is affected.
- Version 17.15.3 is affected.
- Version 17.15.2c is affected.
- Version 17.15.2a is affected.
- Version 17.15.1y is affected.
- Version 17.15.2b is affected.
- Version 17.15.3a is affected.
- Version 17.15.4 is affected.
- Version 17.15.3b is affected.
- Version 17.15.4d is affected.
- Version 17.15.4e is affected.
- Version 17.16.1 is affected.
- Version 17.16.1a is affected.
- Version 17.17.1 is affected.
- Version 17.18.1 is affected.
- Version 17.18.1w is affected.
- Version 17.18.1a is affected.