Path Traversal in Cisco iOS Xe Software
CVE-2025-20313
Multiple vulnerabilities in Cisco IOS XE Software of could allow an authenticated, local attacker with level-15 privileges or an unauthenticated attacker with physical access to the device to execute persistent code at boot time and break the chain of trust. These vulnerabilities are due path traversal and improper image integrity validation. A successful exploit could allow the attacker to execute persistent code on the underlying operating system. Because this allows the attacker to bypass a major security feature of the device, Cisco has raised the Security Impact Rating (SIR) of this advisory from Medium to High. For more information about these vulnerabilities, see the Details ["#details"] section of this advisory. ERP
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.002 (7.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 7th percentile — 7.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: -0.000
Affected products
- Cisco iOS Xe Software — versions 17.3.1, 17.3.2, 17.3.3
- Cisco iOS Xe — versions 17.10.1, 17.10.1a, 17.10.1b
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2025-20313?
- CVE-2025-20313 is a medium-severity vulnerability in Cisco iOS Xe Software, classified under Path Traversal: '.../...//'. CVSS score: 6.7/10. Published 2025-09-24.
- How severe is CVE-2025-20313?
- Medium severity. CVSS v3 base score is 6.7 out of 10.