CVE-2013-1336

Name: CVE-2013-1336
Creator: NVD / NIST
Published: 2013-05-15T03:36:34.403+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 19.26%

Last modified Jun 16, 2026

CVE-2013-1336 is a vulnerability of currently unknown severity. The Common Language Runtime (CLR) in Microsoft .NET Framework 2.0 SP2, 3.5, 3.5.1, 4, and 4.5 does not properly check signatures, which allows remote attackers to make undetected changes to signed XML documents via unspecified vectors that preserve signature validity, aka "XML Digital Signature Spoofing Vulnerability.". EPSS estimates a 19.26% chance of exploitation in the next 30 days.

Description

The Common Language Runtime (CLR) in Microsoft .NET Framework 2.0 SP2, 3.5, 3.5.1, 4, and 4.5 does not properly check signatures, which allows remote attackers to make undetected changes to signed XML documents via unspecified vectors that preserve signature validity, aka "XML Digital Signature Spoofing Vulnerability."

Metrics

EPSS Probability

19.26%

97.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

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	4.0	—
Microsoft	.Net Framework	4.5	—

References

Timeline

Published: May 15, 2013
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2013-1336?

How severe is CVE-2013-1336?

Severity scoring for CVE-2013-1336 is pending analysis. The EPSS model estimates a 19.26% probability of exploitation in the next 30 days.

How do I fix CVE-2013-1336?

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-2013-1336?

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

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Source: NVD / NIST