CVE-2021-21702

HighCVSS 7.5/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-476

Affected software

Vendor	Product	Versions
PHP Group	PHP	>= 7.3.x, < 7.3.27; >= 7.4.x, < 7.4.15; >= 8.0.X, < 8.0.2

References

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

Timeline

Published: Feb 15, 2021
Last modified: Jun 17, 2026
NVD status: Modified

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