CVE-2025-6375 poco MultipartReader.cpp MultipartInputStream null pointer dereference

Medium 4.8 Published Updated
Exploited in the wild
Not known
Fix
Available

What is CVE-2025-6375?

CVE-2025-6375 is a medium-severity vulnerability in poco, published on 21 Jun 2025.

Official description

A vulnerability was found in poco up to 1.14.1. It has been rated as problematic. Affected by this issue is the function MultipartInputStream of the file Net/src/MultipartReader.cpp. The manipulation leads to null pointer dereference. The attack needs to be approached locally. The exploit has been disclosed to the public and may be used. Upgrading to version 1.14.2 is able to address this issue. The patch is identified as 6f2f85913c191ab9ddfb8fae781f5d66afccf3bf. It is recommended to upgrade the affected component.

Weakness: CWE-476, CWE-404

Which versions are affected by CVE-2025-6375?

It affects 1 product.

Products include Pocoproject Poco.

How do I fix CVE-2025-6375?

Upgrade to a fixed version.

Is CVE-2025-6375 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-6375 exists.

Sources

Also known as DEBIAN-CVE-2025-6375, GHSA-xwcq-qmxg-r8f4, OESA-2026-4089, OESA-2026-4090, OESA-2026-4091, UBUNTU-CVE-2025-6375.

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