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vulnerabilityCVE-2026-5450
Name
CVE-2026-5450
Source
NVD ( link)Debian ( link)
Description
Calling the scanf family of functions with a %mc (malloc'd character match) in the GNU C Library version 2.7 to version 2.43 with a format width specifier with an explicit width greater than 1024 could result in a one byte heap buffer overflow.
Published Date
Updated Date
Workaround
-

Analysis#


Affected Component
Analysis
glibc
Exploitable

Vulnerability Ratings#


9.8
CVSSv31
NaN
other

Others affected components#


Name
Project
Project Version
Version
Status
buildroot
master
2.43-27-g4070d808bea1c077eb7e7d52b52b91cae98205d5
Not Affected
yocto
kirkstone
2.35
Exploitable
yocto
master
2.43+git
Patched
yocto
scarthgap
2.39+git
Exploitable

Resolved with patches#


glibc (yocto:master)

#
Title
Author
Resolve
1
stdio-common: Fix buffer overflow in scanf %mc [BZ #34008]
Rocket Ma <marocketbd@gmail.com>
CVE-2026-5450