Cisco SD-WAN vManage Software Directory Traversal Vulnerability

published 2020-07-16 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-24652

cvss: 8.8; version 3.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 2.6%; EPSS 2.6% chance of exploitation in 30 days, percentile 85%
public exploits: 0; none known

A vulnerability in the web management interface of Cisco SD-WAN vManage Software could allow an authenticated, remote attacker to conduct directory traversal attacks and obtain read and write access to sensitive files on a targeted system. The vulnerability is due to a lack of proper validation of files that are uploaded to an affected device. An attacker could exploit this vulnerability by uploading a crafted file to an affected system. An exploit could allow the attacker to view or modify arbitrary files on the targeted system.

Patch / fix

fixed in 1

cisco sd-wan_firmware 19.2.3

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 23 mo ago (2024-11-15)

Exploit prediction

2.64% chance of exploitation in the next 30 days, higher than 85% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.0	8.8	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD	3.1	8.8	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	6.5	AV:N/AC:L/Au:S/C:P/I:P/A:P

Affected products

Cisco Cisco SD-WAN vManage

Classification

Weakness

CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

tools.cisco.com /security/center/content/CiscoSecurityAdvisory/cisco-sa-vmdirtrav-eFdAxsJg
vendor-advisory

Sources

CVE List CVE-2020-3381
NVD CVE-2020-3381

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary