CVE-2016-1546

medium Apache
CVSS v3 Base Score
5.9
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score
41.5%
Exploitation probability in 30 days
Top 3% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Confidentiality
None
Integrity
None
Availability
High
Published: July 6, 2016 (3600 days ago)
Last Modified: May 6, 2026
Vendor: Apache
Source: NVD

Description

The Apache HTTP Server 2.4.17 and 2.4.18, when mod_http2 is enabled, does not limit the number of simultaneous stream workers for a single HTTP/2 connection, which allows remote attackers to cause a denial of service (stream-processing outage) via modified flow-control windows.

CWE

CWE-399

Affected Products

apache http server

References

🔗 httpd.apache.org 🔗 svn.apache.org 🔗 www.apache.org 🔗 www.oracle.com 🔗 www.oracle.com