Is CVE-2016-6597 in the CISA KEV catalog?

No. CVE-2016-6597 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2016-6597?

CVE-2016-6597 has a CVSS v3 base score of 8.6 (HIGH).

What is the EPSS score for CVE-2016-6597?

CVE-2016-6597 has an EPSS score of 4.48% (90th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2016-6597?

No published fix for CVE-2016-6597 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2016-6597

HIGHEPSS 90th pctl

8.6

CVSS v3

NVD

Description

Sophos EAS Proxy before 6.2.0 for Sophos Mobile Control, when Lotus Traveler is enabled, allows remote attackers to access arbitrary web-resources from the backend mail system via a request for the resource, aka an Open Reverse Proxy vulnerability.

CWE-254

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeChanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

4.48%probability of exploitation in 30 days

90thpercentile

High risk: more likely to be exploited than 90% of all known CVEs.

References

Third-Party Advisory1

securityfocus.com

Other references3

Embed a live status badge for CVE-2016-6597

Markdown

[![CVE-2016-6597](https://tridentstack.com/cve/badge/CVE-2016-6597.svg)](https://tridentstack.com/cve/CVE-2016-6597)

HTML

<a href="https://tridentstack.com/cve/CVE-2016-6597"><img src="https://tridentstack.com/cve/badge/CVE-2016-6597.svg" alt="CVE-2016-6597"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-06.