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PHP CVEs

Vulnerabilities in the PHP language itself, and which PHP versions they affect.

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CVE-2021-21702

HIGH 7.5 CVSS 3.1
Published
February 15, 2021
Last modified
June 17, 2026
NVD status
Modified
Reported by
security@php.net
Weakness
CWE-476
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

In PHP versions 7.3.x below 7.3.27, 7.4.x below 7.4.15 and 8.0.x below 8.0.2, when using SOAP extension to connect to a SOAP server, a malicious SOAP server could return malformed XML data as a response that would cause PHP to access a null pointer and thus cause a crash.

Affected products and versions

  • PHP — From 7.3.0 (including) to 7.3.27 (excluding)
  • PHP — From 7.4.0 (including) to 7.4.15 (excluding)
  • PHP — From 8.0.0 (including) to 8.0.2 (excluding)

References

  • bugs.php.net https://bugs.php.net/bug.php?id=80672 Issue Tracking, Vendor Advisory
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2021/07/msg00008.html Mailing List, Third Party Advisory
  • security.gentoo.org https://security.gentoo.org/glsa/202105-23 Third Party Advisory
  • security.netapp.com https://security.netapp.com/advisory/ntap-20210312-0005/ Third Party Advisory
  • www.debian.org https://www.debian.org/security/2021/dsa-4856 Third Party Advisory
  • www.oracle.com https://www.oracle.com/security-alerts/cpuoct2021.html Patch, Third Party Advisory
  • www.tenable.com https://www.tenable.com/security/tns-2021-14 Third Party Advisory
  • nvd.nist.gov Official NVD record