CVE-2026-0915
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2026-01-15

Last updated on: 2026-01-20

Assigner: GNU C Library

Description
Calling getnetbyaddr or getnetbyaddr_r with a configured nsswitch.conf that specifies the library's DNS backend for networks and queries for a zero-valued network in the GNU C Library version 2.0 to version 2.42 can leak stack contents to the configured DNS resolver.
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Meta Information
Published
2026-01-15
Last Modified
2026-01-20
Generated
2026-06-16
AI Q&A
2026-01-16
EPSS Evaluated
2026-06-15
NVD
CVE-2026-0915
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
gnu glibc From 2.0 (inc) to 2.42 (inc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-908 The product uses or accesses a resource that has not been initialized.
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Executive Summary

This vulnerability occurs when the functions getnetbyaddr or getnetbyaddr_r are called with a configured nsswitch.conf that uses the DNS backend for networks. If a query is made for a zero-valued network in GNU C Library versions 2.0 to 2.42, it can cause stack contents to be leaked to the DNS resolver.

Impact Analysis

The vulnerability can lead to unintended disclosure of stack memory contents to an external DNS resolver, potentially exposing sensitive information from the process memory.

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