CVE-2017-7789

PoC —

CVSS 3.0

5.3 medium

EPSS

2%p77

Published

Jun 11, 2018 (Jun 11, 2018)

Modified

Jun 17, 2026

Description

If a server sends two Strict-Transport-Security (STS) headers for a single connection, they will be rejected as invalid and HTTP Strict Transport Security (HSTS) will not be enabled for the connection. This vulnerability affects Firefox < 55.

Vendors: mozilla
Products: firefox
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

NVD CVE.org GitHub PoCs EPSS (1.8%)

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