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Servers and applications

CVE-2011-1148

Use-after-free vulnerability in the substr_replace function in PHP 5.3.6 and earlier allows context-dependent attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact by using the same variable for multiple arguments.

Severity
High 7.5
Published
18 Mar 2011
Last changed
16 Jun 2026
Added to UpHeron
14 Oct 2026
Exploit chance
4.7% in the next 30 daysHigher than 91% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
CWE-399
Attack
Over the network · No login needed
Attacker can
Read some data · Change some data · Slow it down
CVSS vector
AV:N/AC:L/Au:N/C:P/I:P/A:P
Sources
NVD

Affected software

SoftwareAffected versions
PHPServers and applications · cpe:a:php:php
  • Version 5.3.5
  • Version 5.3.4
  • Version 5.3.3
  • Version 5.3.2
All 71 release lines
  • Every version up to 5.3.6
  • Version 1.0
  • Version 2.0b10
  • Version 2.0
  • Version 3.0
  • Version 3.0.1
  • Version 3.0.2
  • Version 3.0.3
  • Version 3.0.4
  • Version 3.0.5
  • Version 3.0.6
  • Version 3.0.7
  • Version 3.0.8
  • Version 3.0.9
  • Version 3.0.10
  • Version 3.0.11
  • Version 3.0.12
  • Version 3.0.13
  • Version 3.0.14
  • Version 3.0.15
  • Version 3.0.16
  • Version 3.0.17
  • Version 3.0.18
  • Version 4.0-beta1
  • Version 4.0-beta2
  • Version 4.0-beta3
  • Version 4.0-beta4
  • Version 4.0-beta_4_patch1
  • Version 4.0
  • Version 4.0.1
  • Version 4.0.2
  • Version 4.0.3
  • Version 4.0.4
  • Version 4.0.5
  • Version 4.0.6
  • Version 4.0.7
  • Version 4.1.0
  • Version 4.1.1
  • Version 4.1.2
  • Version 4.2.0
  • Version 4.2.1
  • Version 4.2.2
  • Version 4.2.3
  • Version 4.3.0
  • Version 4.3.1
  • Version 4.3.2
  • Version 4.3.3
  • Version 4.3.4
  • Version 4.3.5
  • Version 4.3.6
  • Version 4.3.7
  • Version 4.3.8
  • Version 4.3.9
  • Version 4.3.10
  • Version 4.3.11
  • Version 4.4.0
  • Version 4.4.1
  • Version 4.4.2
  • Version 4.4.3
  • Version 4.4.4
  • Version 4.4.5
  • Version 4.4.6
  • Version 4.4.7
  • Version 4.4.8
  • Version 4.4.9
  • Version 5.3.0
  • Version 5.3.1
  • Version 5.3.2
  • Version 5.3.3
  • Version 5.3.4
  • Version 5.3.5

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2011-1148
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2011-1148