CVE-2016-7153

MEDIUM

Microsoft Edge - Exposure of Sensitive Information via HTTP/2 TCP Congestion Window

Title source: llm
STIX 2.1

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.

References (9)

Core 9
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1036741
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1036742
Technical Description x_refsource_misc
https://tom.vg/papers/heist_blackhat2016.pdf
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1036745
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1036744
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1036743
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/92773
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1036746

Scores

CVSS v3 5.3
EPSS 0.0125
EPSS Percentile 79.6%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Details

CWE
CWE-200
Status published
Products (6)
apple/safari
google/chrome
microsoft/edge
microsoft/internet_explorer
mozilla/firefox
opera/opera_browser
Published Sep 06, 2016
Tracked Since Feb 18, 2026