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CVE-2019-1647

24
FAUCET Score

CVE-2019-1647 describes a critical vulnerability in Cisco SD-WAN Solution, specifically affecting vSmart Controllers. An authenticated, adjacent attacker can bypass authentication due to an insecure default configuration, gaining unauthorized access to other vSmart containers. This high-severity vulnerability (CVSS 8.0) allows attackers to retrieve and modify critical system files, leading to significant confidentiality, integrity, and availability impacts. While no active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion has been observed, the potential for severe impact necessitates immediate patching.

Impacted Technologies

VendorProductVersion(s)CPE
< 18.4.0CPE matchmatch criteria
cpe:2.3:a:cisco:sd-wan:*:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:cisco:vsmart_controller:-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.0HIGH

CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.1
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.81%
Probability of exploitation in next 30 days
EPSS Percentile
53.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0081 is in the 52nd percentile among its peer group of 554 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

ciscovendor investigatingvia nvd_reference
View patch

References

tools.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-20190123-sdwan-unaccess
Vendor Advisory
securityfocus.com / bid/106705
Third Party AdvisoryVDB Entry