{"cve":"CVE-2021-21702","nvd":{"published":"2021-02-15T04:15:12.673","modified":"2026-06-17T03:36:01.440","status":"Modified","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-476"],"references":["https://bugs.php.net/bug.php?id=80672","https://lists.debian.org/debian-lts-announce/2021/07/msg00008.html","https://security.gentoo.org/glsa/202105-23","https://security.netapp.com/advisory/ntap-20210312-0005/","https://www.debian.org/security/2021/dsa-4856"],"products":["debian:debian_linux","netapp:clustered_data_ontap","oracle:communications_diameter_signaling_router","php:php"],"source":"nvd","synced_at":"2026-10-19T21:15:50.279857260+00:00"},"epss":{"cve":"CVE-2021-21702","score":0.03152,"percentile":0.87955,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}