CVE-2016-3255

Name: CVE-2016-3255
Creator: NVD / NIST
Published: 2016-07-13T01:59:16.657+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 24.66%

Last modified Jun 17, 2026

CVE-2016-3255 is a vulnerability of currently unknown severity. Microsoft .NET Framework 2.0 SP2, 3.5, 3.5.1, 4.5.2, 4.6, and 4.6.1 allows remote attackers to read arbitrary files via XML data containing an external entity declaration in conjunction with an entity reference, related to an XML External Entity (XXE) issue, aka ".NET Information Disclosure Vulnerability.". EPSS estimates a 24.66% chance of exploitation in the next 30 days.

Description

Microsoft .NET Framework 2.0 SP2, 3.5, 3.5.1, 4.5.2, 4.6, and 4.6.1 allows remote attackers to read arbitrary files via XML data containing an external entity declaration in conjunction with an entity reference, related to an XML External Entity (XXE) issue, aka ".NET Information Disclosure Vulnerability."

Metrics

EPSS Probability

24.66%

97.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-200

Affected Software

Vendor	Product	Versions	Update
Microsoft	.Net Framework	2.0	Sp2
Microsoft	.Net Framework	3.5	—
Microsoft	.Net Framework	3.5.1	—
Microsoft	.Net Framework	4.5.2	—
Microsoft	.Net Framework	4.6	—
Microsoft	.Net Framework	4.6.1	—

References

Timeline

Published: Jul 13, 2016
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-3255?

How severe is CVE-2016-3255?

Severity scoring for CVE-2016-3255 is pending analysis. The EPSS model estimates a 24.66% probability of exploitation in the next 30 days.

How do I fix CVE-2016-3255?

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-2016-3255?

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

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Source: NVD / NIST