🔐 CVE Alert

CVE-2025-20314

MEDIUM 6.7
CVSS Score
6.7
EPSS Score
0.0%
EPSS Percentile
0th

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.

CWE CWE-232
Vendor cisco
Product cisco ios xe software
Ecosystems
Industries
NetworkingTelecommunications
Published Sep 24, 2025
Last Updated Feb 26, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Local
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Affected Versions

Cisco / Cisco IOS XE Software
17.3.1 17.3.2 17.3.3 17.3.1a 17.3.1w 17.3.2a 17.3.1x 17.3.1z 17.3.4 17.3.5 17.3.4a 17.3.6 17.3.4b 17.3.4c 17.3.5a 17.3.5b 17.3.7 17.3.8 17.3.8a 17.4.1 17.4.2 17.4.1a 17.4.1b 17.4.2a 17.5.1 17.5.1a 17.6.1 17.6.2 17.6.1w 17.6.1a 17.6.1x 17.6.3 17.6.1y 17.6.1z 17.6.3a 17.6.4 17.6.1z1 17.6.5 17.6.6 17.6.6a 17.6.5a 17.6.7 17.6.8 17.6.8a 17.7.1 17.7.1a 17.7.1b 17.7.2 17.10.1 17.10.1a 17.10.1b 17.8.1 17.8.1a 17.9.1 17.9.1w 17.9.2 17.9.1a 17.9.1x 17.9.1y 17.9.3 17.9.2a 17.9.1x1 17.9.3a 17.9.4 17.9.1y1 17.9.5 17.9.4a 17.9.5a 17.9.5b 17.9.6 17.9.6a 17.9.7 17.9.5e 17.9.5f 17.9.7a 17.9.7b 17.11.1 17.11.1a 17.12.1 17.12.1w 17.12.1a 17.12.1x 17.12.2 17.12.3 17.12.2a 17.12.1y 17.12.1z 17.12.4 17.12.3a 17.12.1z1 17.12.1z2 17.12.4a 17.12.5 17.12.4b 17.12.1z3 17.12.5a 17.12.1z4 17.12.5b 17.12.5c 17.13.1 17.13.1a 17.14.1 17.14.1a 17.15.1 17.15.1w 17.15.1a 17.15.2 17.15.1b 17.15.1x 17.15.3 17.15.2c 17.15.2a 17.15.1y 17.15.2b 17.15.3a 17.15.3b 17.16.1 17.16.1a 17.17.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗
sec.cloudapps.cisco.com: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-secboot-UqFD8AvC