SecuriTricks - CVE-2025-20314

Description

A vulnerability in Cisco IOS XE Software could allow an authenticated, local attacker with level-15 privileges or an unauthenticated attacker with physical access to an affected device to execute persistent code at boot time and break the chain of trust. This vulnerability is due to improper validation of software packages. An attacker could exploit this vulnerability by placing a crafted file into a specific location on an affected device. A successful exploit could allow the attacker to execute persistent code on the underlying operating system. Because this vulnerability allows an attacker to bypass a major security feature of a device, Cisco has raised the Security Impact Rating (SIR) of this advisory from Medium to High.

Product(s) Impacted

Vendor	Product	Versions
Cisco	Ios Xe Software	*

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-232

Improper Handling of Undefined Values

The product does not handle or incorrectly handles when a value is not defined or supported for the associated parameter, field, or argument name.

*CPE(s)

Affected systems and software identified for this CVE.

Type	Vendor	Product	Version	Update	Edition	Language	Software Edition	Target Software	Target Hardware	Other Information
a	cisco	ios_xe_software	/	/	/	/	/	/	/	/

References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-secboot-UqFD8AvC

CVSS Score

6.7 / 10

CVSS Data - 3.1

Attack Vector: LOCAL
Attack Complexity: LOW
Privileges Required: HIGH
Scope: UNCHANGED
Confidentiality Impact: HIGH
Integrity Impact: HIGH
Availability Impact: HIGH

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

View Vector String

Timeline

Published: Sept. 24, 2025, 6:15 p.m.
Last Modified: Sept. 24, 2025, 6:15 p.m.

Status : Received

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

psirt@cisco.com

CVE-2025-20314