What’s Vulnerable › Vulnerabilities

CVE-2016-10257

• Severity: medium (CVSS 6.1 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-01-10 · updated 2026-06-17
• Weakness: CWE-79

Description

The Symantec Advanced Secure Gateway (ASG) 6.6, ASG 6.7 (prior to 6.7.2.1), ProxySG 6.5 (prior to 6.5.10.6), ProxySG 6.6, and ProxySG 6.7 (prior to 6.7.2.1) management console is susceptible to a reflected XSS vulnerability. A remote attacker can use a crafted management console URL in a phishing attack to inject arbitrary JavaScript code into the management console web client application. This is a separate vulnerability from CVE-2016-10256.

Affected products

• Broadcom Advanced Secure Gateway: from 6.7 before 6.7.2.1; 6.6 — fixed in 6.7.2.1
• Symantec Corporation ProxySG: from 6.5 before 6.5.10.6; from 6.7 before 6.7.2.1; 6.6 — fixed in 6.5.10.6, 6.7.2.1

How to fix

Upgrade to a fixed version: Broadcom Advanced Secure Gateway 6.7.2.1; Symantec Corporation ProxySG 6.5.10.6, 6.7.2.1. Check the vendor advisory for mitigations.

References

• http://www.securityfocus.com/bid/102447
• http://www.securitytracker.com/id/1040138
• https://www.symantec.com/security-center/network-protection-security-advisories/SA155
• http://www.securityfocus.com/bid/102447
• http://www.securitytracker.com/id/1040138
• https://www.symantec.com/security-center/network-protection-security-advisories/SA155

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