CVE-2026-0915

Summary

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.

Affected Software

Weaknesses

• CWE-908: CWE-908 Use of Uninitialized Resource

ADP Enrichment

CVE Program Container

Additional References

• http://www.openwall.com/lists/oss-security/2026/01/16/6

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: yes
  • Technical Impact: partial

Additional References

• https://sourceware.org/bugzilla/show_bug.cgi?id=33802

References

• https://sourceware.org/bugzilla/show_bug.cgi?id=33802

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