CVE-2016-7152: n/a vulnerability

CVE-2016-7152: The HTTPS protocol does not consider the role of the TCP congestion window in providing information about c...

The HTTPS 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.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 01:50 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2016-7152 describes the HEIST attack: an HTTPS side channel where attackers may infer secret page content length from browser network behavior. The source bundle does not identify specific affected products, patches, CVSS scoring, or confirmed active exploitation. Exposure is conditional and product-agnostic in the sources. Risk is most relevant to browser-accessed HTTPS applications that return sensitive authenticated content and allow third-party cookies to be sent in cross-site contexts. Treat this as a conditional privacy and data-exposure risk, not an emergency based on the provided evidence. Prioritize review for customer portals, identity flows, and pages containing personal or account data. Mitigation focus: Check current browser and platform vendor guidance for HEIST-related mitigations.; Review whether sensitive applications depend on third-party cookies for authenticated sessions.; Reduce unnecessary third-party cookie use where business workflows allow..

Prepared: Jun 13, 2026, 13:39 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Sep 6, 2016, 10:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
https://tom.vg/papers/heist_blackhat2016.pdfCVE reference · x_refsource_MISC

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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