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Vulnerability Details :

CVE-2025-6491

Summary
Assigner-php
Assigner Org ID-dd77f84a-d19a-4638-8c3d-a322d820ed2b
Published At-13 Jul, 2025 | 22:10
Updated At-14 Jul, 2025 | 15:59
Rejected At-
Credits

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

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.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:php
Assigner Org ID:dd77f84a-d19a-4638-8c3d-a322d820ed2b
Published At:13 Jul, 2025 | 22:10
Updated At:14 Jul, 2025 | 15:59
Rejected At:
▼CVE Numbering Authority (CNA)
NULL Pointer Dereference in PHP SOAP Extension via Large XML Namespace Prefix

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.

Affected Products
Vendor
The PHP GroupPHP Group
Product
PHP
Package Name
soap
Default Status
affected
Versions
Affected
  • From 8.1.* before 8.1.33 (semver)
  • From 8.2.* before 8.2.29 (semver)
  • From 8.3.* before 8.3.23 (semver)
  • From 8.4.* before 8.4.10 (semver)
Problem Types
TypeCWE IDDescription
CWECWE-476CWE-476 NULL Pointer Dereference
Type: CWE
CWE ID: CWE-476
Description: CWE-476 NULL Pointer Dereference
Metrics
VersionBase scoreBase severityVector
3.15.9MEDIUM
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Version: 3.1
Base score: 5.9
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
reporter
Ahmed Lekssays
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/php/php-src/security/advisories/GHSA-453j-q27h-5p8x
N/A
Hyperlink: https://github.com/php/php-src/security/advisories/GHSA-453j-q27h-5p8x
Resource: N/A
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/php/php-src/security/advisories/GHSA-453j-q27h-5p8x
exploit
Hyperlink: https://github.com/php/php-src/security/advisories/GHSA-453j-q27h-5p8x
Resource:
exploit
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:security@php.net
Published At:13 Jul, 2025 | 22:15
Updated At:22 Jul, 2025 | 16:51

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.15.9MEDIUM
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Type: Secondary
Version: 3.1
Base score: 5.9
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CPE Matches
The PHP Group
php
>>php>>Versions from 8.1.0(inclusive) to 8.1.33(exclusive)
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
The PHP Group
php
>>php>>Versions from 8.2.0(inclusive) to 8.2.29(exclusive)
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
The PHP Group
php
>>php>>Versions from 8.3.0(inclusive) to 8.3.23(exclusive)
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
The PHP Group
php
>>php>>Versions from 8.4.0(inclusive) to 8.4.10(exclusive)
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-476Secondarysecurity@php.net
CWE ID: CWE-476
Type: Secondary
Source: security@php.net
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://github.com/php/php-src/security/advisories/GHSA-453j-q27h-5p8xsecurity@php.net
Exploit
Vendor Advisory
https://github.com/php/php-src/security/advisories/GHSA-453j-q27h-5p8x134c704f-9b21-4f2e-91b3-4a467353bcc0
Exploit
Vendor Advisory
Hyperlink: https://github.com/php/php-src/security/advisories/GHSA-453j-q27h-5p8x
Source: security@php.net
Resource:
Exploit
Vendor Advisory
Hyperlink: https://github.com/php/php-src/security/advisories/GHSA-453j-q27h-5p8x
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Resource:
Exploit
Vendor Advisory

Change History

0
Information is not available yet

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