CVE-2017-6751

Name: CVE-2017-6751
Creator: NVD / NIST
Published: 2017-07-25T19:29:00.363+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.96%

Last modified Jun 17, 2026

CVE-2017-6751 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A vulnerability in the web proxy functionality of the Cisco Web Security Appliance (WSA) could allow an unauthenticated, remote attacker to forward traffic from the web proxy interface of an affected device to the administrative management interface of an affected device, aka an Access Control Bypass Vulnerability. Affected Products: virtual and hardware versions of Cisco Web Security Appliance (WSA). EPSS estimates a 1.96% chance of exploitation in the next 30 days.

Description

A vulnerability in the web proxy functionality of the Cisco Web Security Appliance (WSA) could allow an unauthenticated, remote attacker to forward traffic from the web proxy interface of an affected device to the administrative management interface of an affected device, aka an Access Control Bypass Vulnerability. Affected Products: virtual and hardware versions of Cisco Web Security Appliance (WSA). More Information: CSCvd88863. Known Affected Releases: 10.1.0-204 9.0.0-485.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

EPSS Probability

1.96%

77.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Cisco	Web Security Appliance	9.0.0-162
Cisco	Web Security Appliance	9.0.0-193
Cisco	Web Security Appliance	9.0.0-485
Cisco	Web Security Appliance	10.0.0-232
Cisco	Web Security Appliance	10.0.0-233
Cisco	Web Security Appliance	10.1.0-204
Cisco	Web Security Virtual Appliance	9.0.0
Cisco	Web Security Virtual Appliance	10.0.0
Cisco	Web Security Virtual Appliance	10.1.0
Cisco	Web Security Virtual Appliance	10.1.1

References

http://www.securityfocus.com/bid/99967Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1038959Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170719-wsa5Vendor Advisory
http://www.securityfocus.com/bid/99967Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1038959Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170719-wsa5Vendor Advisory

Timeline

Published: Jul 25, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-6751?

How severe is CVE-2017-6751?

CVE-2017-6751 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.96% probability of exploitation in the next 30 days.

How do I fix CVE-2017-6751?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-6751?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST