5.3med

CVE-2017-7789

If a server sends two Strict-Transport-Security (STS) headers for a single connection, they will be rejected as invalid and HTTP Strict Tra…

Published 8 y ago · modified 4 mo ago · JSON

CVSS
5.3
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
1.7%
percentile 78%
Public exploits
0
none known

Summary

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.

Exploit prediction (EPSS)

1.75% probability of exploitation in the next 30 days, higher than 78% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.05.3CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
NVD2.05.0AV:N/AC:L/Au:N/C:N/I:P/A:N

Affected products

  • Mozilla Firefox

References

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.