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vulnerabilityCVE-2026-4437
Name
CVE-2026-4437
Source
NVD ( link)Debian ( link)
Description
Calling gethostbyaddr or gethostbyaddr_r with a configured nsswitch.conf that specifies the library's DNS backend in the GNU C Library version 2.34 to version 2.43 could, with a crafted response from the configured DNS server, result in a violation of the DNS specification that causes the application to treat a non-answer section of the DNS response as a valid answer.
Published Date
Updated Date
Workaround
-

Analysis#


Affected Component
Analysis
glibc
Exploitable

Vulnerability Ratings#


7.5
CVSSv31
NaN
other

Others affected components#


Name
Project
Project Version
Version
Status
buildroot
2025.02.x
2.41-143-gfc7a48bc9e999c0f9a1f9fa1b209eac1d6a93363
Not Affected
buildroot
master
2.44-23-g11ac3d78fc5e4f7f2846002e099f773ad8ff82fc
Not Affected
yocto
kirkstone
2.35
Exploitable
yocto
master
2.44+git
Not Affected