CVE-2025-14181

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.

• Published Sep 25, 2026
• CVSS 6.5 medium
• 0.3% chance of exploitation in the next 30 days (EPSS)

CVE-2025-14181 at the National Vulnerability Database