UpHeron
All vulnerabilities

Servers and applications

CVE-2019-11049

In PHP versions 7.3.x below 7.3.13 and 7.4.0 on Windows, when supplying custom headers to mail() function, due to mistake introduced in commit 78f4b4a2dcf92ddbccea1bb95f8390a18ac3342e, if the header is supplied in lowercase, this can result in double-freeing certain memory locations.

Severity
Critical 9.8
Published
23 Dec 2019
Last changed
17 Aug 2026
Added to UpHeron
14 Oct 2026
Sources
NVD

Affected software

SoftwareAffected versions
PHPServers and applications · cpe:a:php:php
  • From 7.3.0 up to 7.3.13
  • Version 7.4.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2019-11049
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2019-11049