VULNERABILITY INTELLIGENCE

CVE-2016-7153

CVSS score5.3 MEDIUM

EPSS probability13.98%

CISA KEVNot currently listed

Published2016-09-06

Last modified2026-06-17

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.