All vulnerabilities

Servers and applications

CVE-2016-5396

Apache Traffic Server 6.0.0 to 6.2.0 are affected by an HPACK Bomb Attack.

Severity
High 7.5
Published
17 Apr 2017
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
2.9% in the next 30 daysHigher than 87% of CVEs. EPSS by FIRST, 11 Nov 2026
Weakness
CWE-399
Attack
Over the network · No login needed · No user action needed
Attacker can
Take it down
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Sources
NVD

Affected software

SoftwareAffected versions
Apache Traffic ServerServers and applications · cpe:a:apache:traffic_server
  • Version 6.0.0
  • Version 6.1.0
  • Version 6.1.1
  • Version 6.2.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2016-5396
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2016-5396