CVE-2026-23395: Bluetooth: L2CAP: Fix accepting multiple L2CAP_ECRED_CONN_REQ
Published Mar 25, 2026
·Updated
Bluetooth: L2CAP: Fix accepting multiple L2CAPECREDCONNREQ
Affected Software
17 affected componentsFixes available
Linux Linux kernel (Bluetooth L2CAP)
Microsoft azl3 kernel 6.6.126.1-1
Linux Linux kernel>=5.7.1<5.10.253
Linux Linux kernel>=5.11<5.15.203
Linux Linux kernel>=5.16<6.1.167
Linux Linux kernel>=6.2<6.6.130
Linux Linux kernel>=6.7<6.12.78
Linux Linux kernel>=6.13<6.18.20
Linux Linux kernel>=6.19<6.19.10
Linux Linux kernel=5.7
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
Event History
Mar 25, 2026
CVE Published
via MITRE·10:33 AM
Data Sourced
via MITRE·10:33 AM
DescriptionSeverity
Data Sourced
via NVD·11:16 AM
RemedyDescriptionSeverityAffected Software
Mar 26, 2026
Data Sourced
via Microsoft·08:06 AM
DescriptionSeverityWeaknessAffected Software
Updated
via Microsoft·08:06 AM
DescriptionSeverity
Frequently Asked Questions
1
What is the severity of CVE-2026-23395?
CVE-2026-23395 has a moderate severity level due to the potential for exploitation via multiple L2CAP_ECRED_CONN_REQ connections.
2
How do I fix CVE-2026-23395?
To fix CVE-2026-23395, update the Linux kernel to the latest version that includes the security patch addressing the L2CAP vulnerability.
3
What are the potential impacts of CVE-2026-23395 if exploited?
If exploited, CVE-2026-23395 could lead to denial-of-service conditions or allow an attacker to disrupt Bluetooth communication.
4
Which versions of the Linux kernel are affected by CVE-2026-23395?
CVE-2026-23395 affects various versions of the Linux kernel that implement Bluetooth L2CAP functionalities prior to the patch release.
5
Is CVE-2026-23395 related to Bluetooth functionalities in Linux?
Yes, CVE-2026-23395 specifically addresses a vulnerability in the Bluetooth L2CAP layer of the Linux kernel.