CVE-2016-7153

Name: CVE-2016-7153
Creator: NVD / NIST
Published: 2016-09-06T10:59:01.493+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 13.98%

Last modified Jun 17, 2026

CVE-2016-7153 is a vulnerability of currently unknown severity. The HTTP/2 protocol does not consider the role of the TCP congestion window in providing information about content length, which makes it easier for remote attackers to obtain cleartext data by leveraging a web-browser configuration in which third-party cookies are sent, aka a "HEIST" attack.. EPSS estimates a 13.98% chance of exploitation in the next 30 days.

Description

The HTTP/2 protocol does not consider the role of the TCP congestion window in providing information about content length, which makes it easier for remote attackers to obtain cleartext data by leveraging a web-browser configuration in which third-party cookies are sent, aka a "HEIST" attack.

Metrics

EPSS Probability

13.98%

96.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-200

Affected Software

Vendor	Product	Versions
Microsoft	Edge	All versions
Microsoft	Internet Explorer	All versions
Google	Chrome	All versions
Apple	Safari	All versions
Opera	Opera Browser	All versions
Mozilla	Firefox	All versions

References

Timeline

Published: Sep 6, 2016
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-7153?

How severe is CVE-2016-7153?

Severity scoring for CVE-2016-7153 is pending analysis. The EPSS model estimates a 13.98% probability of exploitation in the next 30 days.

How do I fix CVE-2016-7153?

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-2016-7153?

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

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Source: NVD / NIST