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THREATINT
PUBLISHED

CVE-2025-6491

NULL Pointer Dereference in PHP SOAP Extension via Large XML Namespace Prefix



Description

In PHP versions:8.1.* before 8.1.33, 8.2.* before 8.2.29, 8.3.* before 8.3.23, 8.4.* before 8.4.10 when parsing XML data in SOAP extensions, overly large (>2Gb) XML namespace prefix may lead to null pointer dereference. This may lead to crashes and affect the availability of the target server.

Reserved 2025-06-22 | Published 2025-07-13 | Updated 2025-07-13 | Assigner php


MEDIUM: 5.9CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Problem types

CWE-476 NULL Pointer Dereference

Product status

Default status
affected

8.1.* before 8.1.33
affected

8.2.* before 8.2.29
affected

8.3.* before 8.3.23
affected

8.4.* before 8.4.10
affected

Credits

Ahmed Lekssays reporter

References

github.com/...hp-src/security/advisories/GHSA-453j-q27h-5p8x

cve.org (CVE-2025-6491)

nvd.nist.gov (CVE-2025-6491)

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