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CVE-2016-7153
The HTTP/2 protocol does not consider the role of the TCP congestion window in providing information about content length, which makes it…
Medium5.3EPSS 12.8%
- Published
- Updated
- Reserved
- Assigned by
- mitre
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | Medium5.3 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
- EPSS (exploitation in 30 days)
- 12.8% · top 3.7% of all CVEs (2 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.3.
Weakness
Affected products
n/a
- affected n/a
References (9)
- 1036741 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- 1036742 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- https://tom.vg/papers/heist_blackhat2016.pdf (opens in a new tab)x_refsource_MISCx_transferred
- 1036745 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- http://arstechnica.com/security/2016/08/new-attack-steals-ssns-e-mail-addresses-and-more-from-https-pages/ (opens in a new tab)x_refsource_MISCx_transferred
- 1036744 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- 1036743 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- 92773 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 1036746 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Record last updated .