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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
2.41-137-gb676adadbc1f5fb2f31bc484a7628cca89ae6f22
Not Affected
buildroot
master
2.43-27-g4070d808bea1c077eb7e7d52b52b91cae98205d5
Not Affected
yocto
kirkstone
2.35
Exploitable
yocto
master
2.43+git
Not Affected