CVE-2025-14180

NULL Pointer Dereference in PDO quoting

State: Published
Severity: 8.2 High
Published: Dec 27, 2025
Updated: Dec 29, 2025
Reserved: Dec 6, 2025

Description

In PHP versions 8.1.* before 8.1.34, 8.2.* before 8.2.30, 8.3.* before 8.3.29, 8.4.* before 8.4.16, 8.5.* before 8.5.1 when using the PDO PostgreSQL driver with PDO::ATTR_EMULATE_PREPARES enabled, an invalid character sequence (such as \x99) in a prepared statement parameter may cause the quoting function PQescapeStringConn to return NULL, leading to a null pointer dereference in pdo_parse_params() function. This may lead to crashes (segmentation fault) and affect the availability of the target server.

Scores

CVSS	Score	Vector	Source
4.0	8.2 High	CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N	php

Weaknesses

CWE-476 NULL Pointer Dereference

Affected Products

Product	Versions
PHPPHP Group	8.1.* to before 8.1.34Affected 8.2.* to before 8.2.30Affected 8.3.* to before 8.3.29Affected 8.4.* to before 8.4.16Affected 8.5.* to before 8.5.1Affected

References

https://github.com/php/php-src/security/advisories/GHSA-8xr5-qppj-gvwj

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