CVE-2026-53263: 6lowpan: fix off-by-one in multicast context address compression
Published Jun 25, 2026
·Updated
6lowpan: fix off-by-one in multicast context address compression
Affected Software
15 affected componentsFixes available
Linux Linux kernel
Microsoft azl3 kernel 6.6.141.1-1<6.6.143.1-1
6.6.143.1-1
Linux Linux kernel>=4.6<5.10.259
Linux Linux kernel>=5.11<5.15.210
Linux Linux kernel>=5.16<6.1.176
Linux Linux kernel>=6.2<6.6.143
Linux Linux kernel>=6.7<6.12.94
Linux Linux kernel>=6.13<6.18.36
Linux Linux kernel>=6.19<7.0.13
Linux Linux kernel=7.1-rc1
Linux Linux kernel=7.1-rc2
Linux Linux kernel=7.1-rc3
Linux Linux kernel=7.1-rc4
Linux Linux kernel=7.1-rc5
Linux Linux kernel=7.1-rc6
Remediation
Event History
Jun 25, 2026
CVE Published
via MITRE·08:39 AM
Data Sourced
via MITRE·08:39 AM
Description
Data Sourced
via NVD·09:16 AM
RemedyDescriptionSeverityWeaknessAffected Software
Jun 27, 2026
Data Sourced
via Microsoft·08:19 AM
DescriptionSeverityWeaknessAffected Software
Updated
via Microsoft·08:19 AM
DescriptionSeverity
Frequently Asked Questions
1
What is the severity of CVE-2026-53263?
CVE-2026-53263 has a risk rating of 33.
2
What systems are affected by CVE-2026-53263?
CVE-2026-53263 affects the Linux kernel.
3
How do I fix CVE-2026-53263?
To fix CVE-2026-53263, ensure that you apply the relevant patches provided for the Linux kernel.
4
What type of vulnerability is CVE-2026-53263?
CVE-2026-53263 is an off-by-one error in multicast context address compression.
5
When was CVE-2026-53263 published?
CVE-2026-53263 was published on June 25, 2026.