What is CVE-2016-6436?

CVE-2016-6436 is a medium-severity vulnerability in Cisco Hostscan Engine, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2016-10-06.

How severe is CVE-2016-6436?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Cisco Hostscan Engine

CVE-2016-6436

Cross-site scripting (XSS) vulnerability in HostScan Engine 3.0.08062 through 3.1.14018 in the Cisco Host Scan package, as used in ASA Web VPN, allows remote attackers to inject arbitrary web script or HTML via a crafted URL, aka Bug ID CSCuz14682.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2016-10-06 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.008 (53.8th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 53.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Cisco Hostscan Engine — versions 3.0.08062, 3.0.08066, 3.1.01065

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

www.securityfocus.com/bid/93407 (vdb-entry)
tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20161005… (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2016-6436?: CVE-2016-6436 is a medium-severity vulnerability in Cisco Hostscan Engine, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2016-10-06.
How severe is CVE-2016-6436?: Medium severity. CVSS v3 base score is 6.1 out of 10.