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Vulnerability Intelligence

Vulnerability IntelligenceCVE-2026-0915

CVE-2026-0915

HIGH7.5

getnetbyaddr and getnetbyaddr_r leak stack contents to DNS resovler

Published Jan 15, 2026

Modified 1 months ago

Details

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.

References

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

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

https://www.cve.org/CVERecord?id=CVE-2026-0915

CVSS Analysis

CVSS v3.1

7.5

Exploitability

Attack Vector

NetworkAV:N

Attack Complexity

LowAC:L

Privileges Required

NonePR:N

User Interaction

NoneUI:N

Scope

Scope

UnchangedS:U

Impact

Confidentiality

HighC:H

Integrity

NoneI:N

Availability

NoneA:N

7.5/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness Type (CWE)

Other

Ecosystems

Timeline

PublishedJan 15, 2026

ModifiedJan 20, 2026

CVE-2026-0915 | Mondoo Vulnerability Intelligence