cvedb.io
CVE-2026-20104
MEDIUM · CVSS 6.1
EPSS exploitation probability: 0%
Published 2026-03-25T16:16:14.143 · Last modified 2026-06-17T10:17:06.640

Summary

A vulnerability in the bootloader of Cisco IOS XE Software for Cisco Catalyst 9200 Series Switches, Cisco Catalyst ESS9300 Embedded Series Switches, Cisco Catalyst IE9310 and IE9320 Rugged Series Switches, and Cisco IE3500 and IE3505 Rugged Series Switches could allow an authenticated, local attacker with level-15 privileges or an unauthenticated attacker with physical access to an affected device to execute arbitrary code at boot time and break the chain of trust. This vulnerability is due to insufficient validation of software at boot time. An attacker could exploit this vulnerability by manipulating the loaded binaries on an affected device to bypass some of the integrity checks that are performed during the boot process. A successful exploit could allow the attacker to execute code

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.