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CVE-2016-10256

17
FAUCET Score

CVE-2016-10256 describes a reflected Cross-Site Scripting (XSS) vulnerability in the management console of Symantec ProxySG versions 6.5 (prior to 6.5.10.6), 6.6, and 6.7 (prior to 6.7.2.1). An unauthenticated attacker could exploit this by crafting a malicious URL, which, if clicked by an administrator, would inject arbitrary JavaScript into their web client. This vulnerability carries a CVSSv3 score of 6.1 (Medium), indicating it can be exploited remotely with low complexity, requiring user interaction, and potentially leading to limited confidentiality and integrity impacts. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 6.5, < 6.5.10.6CPE matchmatch criteria
cpe:2.3:a:broadcom:symantec_proxysg:*:*:*:*:*:*:*:*
>= 6.7, < 6.7.2.1CPE matchmatch criteria
cpe:2.3:a:broadcom:symantec_proxysg:*:*:*:*:*:*:*:*
6.6CPE matchmatch criteria
cpe:2.3:a:broadcom:symantec_proxysg:6.6:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.1MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.7
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.47%
Probability of exploitation in next 30 days
EPSS Percentile
71.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0147 is in the 83rd percentile among its peer group of 26,221 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

symantec.com / security-center/network-protection-security-advisories/SA155
Vendor Advisory
securityfocus.com / bid/102451
Third Party AdvisoryVDB Entry
securitytracker.com / id/1040138
Third Party AdvisoryVDB Entry