CVE-2026-63834: batman-adv: tp_meter: restrict number of unacked list entries
Published Jul 19, 2026
·Updated
batman-adv: tpmeter: restrict number of unacked list entries
Affected Software
2 affected componentsFixes available
Linux kernel batman-adv
Microsoft azl3 kernel 6.6.143.1-1<6.6.150.1-1
6.6.150.1-1
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 6.6.150.1-1
Event History
Jul 19, 2026
CVE Published
via MITRE·12:02 PM
Data Sourced
via MITRE·12:02 PM
Description
Data Sourced
via NVD·12:16 PM
Description
Jul 20, 2026
Data Sourced
via Microsoft·08:05 AM
DescriptionSeverityWeakness
Data Sourced
via Microsoft·08:05 AM
Affected Software
Updated
via Microsoft·08:05 AM
DescriptionSeverity
Frequently Asked Questions
1
What is the severity of CVE-2026-63834?
CVE-2026-63834 has a risk score of 33.
2
How do I fix CVE-2026-63834?
To resolve CVE-2026-63834, update the Linux kernel to the latest version that includes the patch for this vulnerability.
3
What systems are affected by CVE-2026-63834?
CVE-2026-63834 affects systems running vulnerable versions of the Linux kernel that utilize the batman-adv networking protocol.
4
What type of vulnerability is CVE-2026-63834?
CVE-2026-63834 is related to a denial of service vulnerability due to unbounded allocation in the batman-adv protocol.
5
What is the impact of CVE-2026-63834 on network security?
CVE-2026-63834 can allow an attacker to exploit unacked list entries to exhaust system resources, potentially leading to service disruptions.