DEBIAN-CVE-2021-21702

DEBIAN-CVE-2021-21702 PUBLISHED CVSS 7.5 HIGH

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.

Risk Scores

CVSS 3.1

7.5

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

Affected Products

Vendor	Product	Versions
Debian:11	php7.4	0, 0, 0

Exploit Intelligence

cve_db.json (github-poc)

Timeline

Feb 15, 2021 CVE Published
Apr 28, 2026 CVE Updated

References

https://security-tracker.debian.org/tracker/CVE-2021-21702 advisory

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