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Servers and applications

CVE-2017-12933

The finish_nested_data function in ext/standard/var_unserializer.re in PHP before 5.6.31, 7.0.x before 7.0.21, and 7.1.x before 7.1.7 is prone to a buffer over-read while unserializing untrusted data. Exploitation of this issue can have an unspecified impact on the integrity of PHP.

Severity
Critical 9.8
Published
18 Aug 2017
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 7.1.6
  • Version 7.1.5
  • Version 7.1.4
  • Version 7.1.3
All 29 release lines
  • Every version up to 5.6.30
  • Version 7.0.0
  • Version 7.0.1
  • Version 7.0.2
  • Version 7.0.3
  • Version 7.0.4
  • Version 7.0.5
  • Version 7.0.6
  • Version 7.0.7
  • Version 7.0.8
  • Version 7.0.9
  • Version 7.0.10
  • Version 7.0.11
  • Version 7.0.12
  • Version 7.0.13
  • Version 7.0.14
  • Version 7.0.15
  • Version 7.0.16
  • Version 7.0.17
  • Version 7.0.18
  • Version 7.0.19
  • Version 7.0.20
  • Version 7.1.0
  • Version 7.1.1
  • Version 7.1.2
  • Version 7.1.3
  • Version 7.1.4
  • Version 7.1.5
  • Version 7.1.6

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2017-12933
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2017-12933