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.
Advisories

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Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 21 Jan 2026 01:15:00 +0900

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}


Sat, 17 Jan 2026 03:30:00 +0900

Type Values Removed Values Added
References

Fri, 16 Jan 2026 23:15:00 +0900

Type Values Removed Values Added
First Time appeared Gnu
Gnu glibc
Vendors & Products Gnu
Gnu glibc

Fri, 16 Jan 2026 21:15:00 +0900

Type Values Removed Values Added
References
Metrics threat_severity

None

cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'}

threat_severity

Moderate


Fri, 16 Jan 2026 07:15:00 +0900

Type Values Removed Values Added
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.
Title getnetbyaddr and getnetbyaddr_r leak stack contents to DNS resovler
Weaknesses CWE-908
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: glibc

Published:

Updated: 2026-01-20T16:03:52.590Z

Reserved: 2026-01-13T19:02:42.388Z

Link: CVE-2026-0915

cve-icon Vulnrichment

Updated: 2026-01-16T17:06:43.013Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-01-15T22:16:12.457

Modified: 2026-01-20T16:16:07.410

Link: CVE-2026-0915

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-01-15T22:08:41Z

Links: CVE-2026-0915 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-01-16T22:43:15Z

Weaknesses