Apache HTTP Server, in all releases prior to 2.2.32 and 2.4.25, was liberal in the whitespace accepted from requests and sent in response lines and headers. Accepting these different behaviors represented a security concern when httpd participates in any chain of proxies or interacts with back-end application servers, either through mod_proxy or using conventional CGI mechanisms, and may result in request smuggling, response splitting and cache pollution.
Published 2017-07-27 21:29:00
Updated 2022-09-07 17:39:52
View at NVD,   CVE.org

Products affected by CVE-2016-8743

Threat overview for CVE-2016-8743

Top countries where our scanners detected CVE-2016-8743
Top open port discovered on systems with this issue 80
IPs affected by CVE-2016-8743 4,747,921
Threat actors abusing to this issue? Yes
Find out if you* are affected by CVE-2016-8743!
*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

Exploit prediction scoring system (EPSS) score for CVE-2016-8743

5.86%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 93 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2016-8743

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
5.0
MEDIUM AV:N/AC:L/Au:N/C:N/I:P/A:N
10.0
2.9
NIST
7.5
HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
3.9
3.6
NIST

References for CVE-2016-8743

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