Cleartext Transmission of Sensitive Information in Cisco IOS XE - CVE-2026-20115
Published: March 25, 2026
Vulnerability identifier: #VU124589
CSH Severity: Medium
CVSS v4: 5.9 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-20115
CWE-ID: CWE-319
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to disclose sensitive information.
The vulnerability exists due to improper use of a secure channel in the device configuration upload process when handling communication with the Cisco Meraki Dashboard. A remote attacker can conduct an on-path attack to disclose sensitive device configuration information.
Exploitation requires user interaction in the form of an on-path position between the affected device and the Cisco Meraki Dashboard.
Affected software
Cisco IOS XE
How to mitigate CVE-2026-20115
Install security update from vendor's website.
Cisco IOS XE - update to 17.15.4s1