CVE-2026-31515: af_key: validate families in pfkey_send_migrate()
Published Apr 22, 2026
·Updated
afkey: validate families in pfkeysendmigrate()
Affected Software
17 affected componentsFixes available
The Linux Foundation Linux Kernel
Linux Linux kernel>=2.6.21.1<5.10.253
Linux Linux kernel>=5.11<5.15.203
Linux Linux kernel>=5.16<6.1.168
Linux Linux kernel>=6.2<6.6.131
Linux Linux kernel>=6.7<6.12.80
Linux Linux kernel>=6.13<6.18.21
Linux Linux kernel>=6.19<6.19.11
Linux Linux kernel=2.6.21
Linux Linux kernel=7.0-rc1
Linux Linux kernel=7.0-rc2
Linux Linux kernel=7.0-rc3
Linux Linux kernel=7.0-rc4
Linux Linux kernel=7.0-rc5
Linux Linux kernel=7.0-rc6
Linux Linux kernel=7.0-rc7
Microsoft azl3 kernel 6.6.130.1-3
Event History
Apr 22, 2026
CVE Published
via MITRE·01:54 PM
Data Sourced
via MITRE·01:54 PM
Description
Data Sourced
via NVD·02:16 PM
RemedyDescriptionSeverityWeaknessAffected Software
Apr 23, 2026
Data Sourced
via Microsoft·08:04 AM
DescriptionSeverityWeakness
Data Sourced
via Microsoft·08:04 AM
Affected Software
Updated
via Microsoft·08:04 AM
DescriptionSeverity
Frequently Asked Questions
1
What is the severity of CVE-2026-31515?
CVE-2026-31515 has been classified as a moderate severity vulnerability.
2
How do I fix CVE-2026-31515?
To fix CVE-2026-31515, upgrade the Linux kernel to a version that includes the security patch.
3
Which versions of Linux are affected by CVE-2026-31515?
CVE-2026-31515 affects various versions of the Linux kernel between 2.6.21.1 and 7.0-rc7.
4
What components are involved in CVE-2026-31515?
CVE-2026-31515 involves the pfkey_send_migrate() function within the Linux kernel.
5
Is there any known exploit for CVE-2026-31515?
As of now, there have been no public reports of exploits specifically targeting CVE-2026-31515.