TI-2025-05776 Aliases CVE-2025-6375 GHSA-xwcq-qmxg-r8f4

poco MultipartReader.cpp MultipartInputStream null pointer dereference

MEDIUM 55CWE-404Published 2025-06-21 · Updated 2025-06-23

Key facts

Attack vector: Local
Privileges required: Low
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · Low
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-404.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.0026 17th percentileScored 2026-11-07

Public exploit Yes 4 exploit referencesTagged by the CNA and NVD

Fix Fixed poco: 1.14.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	poco	1.14.0; 1.14.1	1.14.2	Patch available	CNA

poco Vendor— Affected 1.14.0; 1.14.1 Fixed in 1.14.2 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:pocoproject:poco::::::::	before 1.14.2	Vulnerable	Pocoproject

cpe:2.3:a:pocoproject:poco:*:*:*:*:*:*:*:* Versions before 1.14.2 Vulnerable ·Pocoproject

Remediation

Fix · CNA poco Fixed in 1.14.2

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product

Red Hat

Timeline

2026-10-02 Threatist record created from CVE-2025-6375
2026-10-03 Alias added: GHSA-xwcq-qmxg-r8f4

References

Exploit 4

TI-2023-28771 UTF32Encoding.cpp in POCO has a Poco::UTF32Encoding integer overflow and resultant stack… CVSS 3.1CRITICAL 9.8
TI-2017-14681 The ZipCommon::isValidPath() function in Zip/src/ZipCommon.cpp in POCO C++ Libraries… CVSS 3.0MEDIUM 6.5
TI-2025-28837 poco v1.14.1-release was discovered to contain weak encryption. CVSS 3.1HIGH 7.0

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences