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Servers and applications

CVE-2016-2161

In Apache HTTP Server versions 2.4.0 to 2.4.23, malicious input to mod_auth_digest can cause the server to crash, and each instance continues to crash even for subsequently valid requests.

Severity
High 7.5
Published
27 Jul 2017
Last changed
17 Jun 2026
Added to UpHeron
17 Oct 2026
Sources
NVD

Affected software

SoftwareAffected versions
Apache HTTP ServerServers and applications · cpe:a:apache:http_server
  • Version 2.4.23
  • Version 2.4.22
  • Version 2.4.21
  • Version 2.4.20
All 17 release lines
  • Version 2.4.0
  • Version 2.4.1
  • Version 2.4.2
  • Version 2.4.3
  • Version 2.4.6
  • Version 2.4.7
  • Version 2.4.8
  • Version 2.4.9
  • Version 2.4.10
  • Version 2.4.12
  • Version 2.4.14
  • Version 2.4.16
  • Version 2.4.19
  • Version 2.4.20
  • Version 2.4.21
  • Version 2.4.22
  • Version 2.4.23

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2016-2161
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2016-2161