CVE-2016-9955

Name: CVE-2016-9955
Creator: NVD / NIST
Published: 2017-02-17T02:59:14.233+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.19%

Last modified Jun 17, 2026

CVE-2016-9955 is a vulnerability of currently unknown severity. The SimpleSAML_XML_Validator class constructor in SimpleSAMLphp before 1.14.11 might allow remote attackers to spoof signatures on SAML 1 responses or possibly cause a denial of service (memory consumption) by leveraging improper conversion of return values to boolean.. EPSS estimates a 1.19% chance of exploitation in the next 30 days.

Description

The SimpleSAML_XML_Validator class constructor in SimpleSAMLphp before 1.14.11 might allow remote attackers to spoof signatures on SAML 1 responses or possibly cause a denial of service (memory consumption) by leveraging improper conversion of return values to boolean.

Metrics

EPSS Probability

1.19%

63.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Simplesamlphp	Simplesamlphp	< 1.14.11
Debian	Debian Linux	7.0

References

http://www.securityfocus.com/bid/94946Third Party Advisory, VDB Entry
https://lists.debian.org/debian-lts-announce/2018/03/msg00001.htmlThird Party Advisory
https://simplesamlphp.org/security/201612-02Vendor Advisory
http://www.securityfocus.com/bid/94946Third Party Advisory, VDB Entry
https://lists.debian.org/debian-lts-announce/2018/03/msg00001.htmlThird Party Advisory
https://simplesamlphp.org/security/201612-02Vendor Advisory

Timeline

Published: Feb 17, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-9955?

How severe is CVE-2016-9955?

Severity scoring for CVE-2016-9955 is pending analysis. The EPSS model estimates a 1.19% probability of exploitation in the next 30 days.

How do I fix CVE-2016-9955?

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-2016-9955?

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

Scan your code now

Source: NVD / NIST