CVE-2026-0915
getnetbyaddr and getnetbyaddr_r leak stack contents to DNS resovler
7.5CVSSHIGH
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.
CVSS Vector Breakdown
Exploitability
AV:NAttack VectorNetwork
AC:LAttack ComplexityLow
PR:NPrivileges RequiredNone
UI:NUser InteractionNone
Scope
S:UScopeUnchanged
Impact
C:HConfidentialityHigh
I:NIntegrityNone
A:NAvailabilityNone
Weaknesses
Affected Products
and 3 more affected products View all →
Attack Graph
Products CVE Techniques Tactics
Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.
Exploitability
Official Patch Available
MITRE ATT&CK
1 technique Collection
References
https://www.openwall.com/lists/oss-security/2026/01/16/6
openwall.com
https://altsp.su/obnovleniya-bezopasnosti/
altsp.su
https://wiki.astralinux.ru/astra-linux-se17-bulletin-2026-0421SE17
wiki.astralinux.ru
and 5 more references View all →
Timeline
Published
Jan 15, 2026
Last Updated
Jan 23, 2026
Unlock Complete Vulnerability Intelligence
Get the full picture for CVE-2026-0915 and every CVE in our database. Create a free account — no credit card required.
Create Free AccountPlain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows