UpHeron
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Servers and applications

CVE-2015-8838

ext/mysqlnd/mysqlnd.c in PHP before 5.4.43, 5.5.x before 5.5.27, and 5.6.x before 5.6.11 uses a client SSL option to mean that SSL is optional, which allows man-in-the-middle attackers to spoof servers via a cleartext-downgrade attack, a related issue to CVE-2015-3152.

Severity
Medium 5.9
Published
16 May 2016
Last changed
17 Jun 2026
Added to UpHeron
14 Oct 2026
Sources
NVD

Affected software

SoftwareAffected versions
PHPServers and applications · cpe:a:php:php
  • Version 5.6.10
  • Version 5.6.9
  • Version 5.6.8
  • Version 5.6.7
All 59 release lines
  • Every version up to 5.4.42
  • Version 5.5.0-alpha1
  • Version 5.5.0-alpha2
  • Version 5.5.0-alpha3
  • Version 5.5.0-alpha4
  • Version 5.5.0-alpha5
  • Version 5.5.0-alpha6
  • Version 5.5.0-beta1
  • Version 5.5.0-beta2
  • Version 5.5.0-beta3
  • Version 5.5.0-beta4
  • Version 5.5.0-rc1
  • Version 5.5.0-rc2
  • Version 5.5.0
  • Version 5.5.1
  • Version 5.5.2
  • Version 5.5.3
  • Version 5.5.4
  • Version 5.5.5
  • Version 5.5.6
  • Version 5.5.7
  • Version 5.5.8
  • Version 5.5.9
  • Version 5.5.10
  • Version 5.5.11
  • Version 5.5.12
  • Version 5.5.13
  • Version 5.5.14
  • Version 5.5.15
  • Version 5.5.16
  • Version 5.5.17
  • Version 5.5.18
  • Version 5.5.19
  • Version 5.5.20
  • Version 5.5.21
  • Version 5.5.22
  • Version 5.5.23
  • Version 5.5.24
  • Version 5.5.25
  • Version 5.5.26
  • Version 5.6.0-alpha1
  • Version 5.6.0-alpha2
  • Version 5.6.0-alpha3
  • Version 5.6.0-alpha4
  • Version 5.6.0-alpha5
  • Version 5.6.0-beta1
  • Version 5.6.0-beta2
  • Version 5.6.0-beta3
  • Version 5.6.0-beta4
  • Version 5.6.1
  • Version 5.6.2
  • Version 5.6.3
  • Version 5.6.4
  • Version 5.6.5
  • Version 5.6.6
  • Version 5.6.7
  • Version 5.6.8
  • Version 5.6.9
  • Version 5.6.10

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2015-8838
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2015-8838