UpHeron
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Servers and applications

CVE-2016-4539

The xml_parse_into_struct function in ext/xml/xml.c in PHP before 5.5.35, 5.6.x before 5.6.21, and 7.x before 7.0.6 allows remote attackers to cause a denial of service (buffer under-read and segmentation fault) or possibly have unspecified other impact via crafted XML data in the second argument, leading to a parser level of zero.

Severity
Critical 9.8
Published
22 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 7.0.5
  • Version 7.0.4
  • Version 7.0.3
  • Version 7.0.2
All 28 release lines
  • Every version up to 5.5.34
  • Version 5.6.0
  • 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
  • Version 5.6.11
  • Version 5.6.12
  • Version 5.6.13
  • Version 5.6.14
  • Version 5.6.15
  • Version 5.6.16
  • Version 5.6.17
  • Version 5.6.18
  • Version 5.6.19
  • Version 5.6.20
  • Version 7.0.0
  • Version 7.0.1
  • Version 7.0.2
  • Version 7.0.3
  • Version 7.0.4
  • Version 7.0.5

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2016-4539
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2016-4539