CVE-2025-14181 Integer overflow to buffer overflow in soap HTTP parsing

What is CVE-2025-14181?

CVE-2025-14181 is a medium-severity vulnerability in Php Php, published on 25 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The SOAP HTTP client guards its response buffer growth with a check that relies on signed integer overflow, which is undefined behaviour and is not guaranteed to trigger. When the check is optimised away, a malicious SOAP server can make the client allocate a buffer far smaller than the data it then writes into it, producing a heap buffer overflow.

Weakness: CWE-190

Which versions are affected by CVE-2025-14181?

3 open source packages ship an affected version, including libphp, php and php-min. It affects 1 product.

Products include Php Php.

How do I fix CVE-2025-14181?

Upgrade libphp to a fixed version for your release line: 8.2.34, 8.3.35, 8.4.26 or 8.5.11.

Is CVE-2025-14181 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-14181 exists.

Other vulnerabilities in Php Php

• CVE-2012-2688 Integer overflow in n/a Critical 10.0
• CVE-2012-2376 Memory corruption in n/a Critical 10.0
• CVE-2011-3268 Memory corruption in n/a Critical 10.0
• CVE-2009-4143 Other in n/a Critical 10.0
• CVE-2008-5557 Memory corruption in n/a Critical 10.0

All Php Php vulnerabilities

Sources

• CVE record
• NVD
• OSV
• How this page is made

Also known as AZL-104910, BELL-CVE-2025-14181, BIT-libphp-2025-14181, BIT-php-2025-14181, BIT-php-min-2025-14181, CLEANSTART-2026-WW44198 and 11 more.