Cisco SD-WAN Solution Software Static Credentials Vulnerability

published 2020-07-16 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-24451

cvss: 8.4; version 3.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 21%
public exploits: 0; none known

A vulnerability in Cisco SD-WAN Solution Software could allow an unauthenticated, local attacker to access an affected device by using an account that has a default, static password. This account has root privileges. The vulnerability exists because the affected software has a user account with a default, static password. An attacker could exploit this vulnerability by remotely connecting to an affected system by using this account. A successful exploit could allow the attacker to log in by using this account with root privileges.

Patch / fix

fixed in 1

cisco sd-wan 18.3.6, 18.4.5, 19.2.2

CISA SSVC

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

Exploit prediction

0.28% chance of exploitation in the next 30 days, higher than 21% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.0	8.4	CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	3.1	7.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	7.2	AV:L/AC:L/Au:N/C:C/I:C/A:C

Affected products

Cisco Cisco SD-WAN vManage

Classification

Weakness

CWE-264 Permissions, Privileges, and Access Controls
CWE-522 Insufficiently Protected Credentials

References

tools.cisco.com /security/center/content/CiscoSecurityAdvisory/cisco-sa-sdscred-HfWWfqBj
vendor-advisory

Sources

CVE List CVE-2020-3180
NVD CVE-2020-3180

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Summary