net/sched: act_ct: Only release RCU read lock after ct_ft
CVE-2026-46319 is a local privilege escalation vulnerability in the Linux Kernel related to the net/sched act_ct component. Exploitation requires the attacker to already have the ability to execute high-privileged code on the target system. The vulnerability involves improper release of the RCU read lock after ct_ft. No patch or remediation details are provided in the available data.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-46319) affects the Linux Kernel version 3.0 and involves the net/sched act_ct component where the RCU read lock is only released after ct_ft, potentially allowing local attackers to escalate privileges. Exploitation requires prior high-privileged code execution capabilities. The vulnerability has been assigned a CVSS rating of 7.5 by ZDI, indicating a high severity level. No vendor advisory or patch information is currently available.
Potential Impact
Successful exploitation allows local attackers with existing high-privileged code execution capabilities to escalate privileges further on affected Linux Kernel installations. This could lead to unauthorized administrative control of the system.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no patch or official fix information is provided, users should monitor for updates from the Linux Kernel maintainers or Microsoft Security Response Center.
net/sched: act_ct: Only release RCU read lock after ct_ft
Description
CVE-2026-46319 is a local privilege escalation vulnerability in the Linux Kernel related to the net/sched act_ct component. Exploitation requires the attacker to already have the ability to execute high-privileged code on the target system. The vulnerability involves improper release of the RCU read lock after ct_ft. No patch or remediation details are provided in the available data.
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-46319) affects the Linux Kernel version 3.0 and involves the net/sched act_ct component where the RCU read lock is only released after ct_ft, potentially allowing local attackers to escalate privileges. Exploitation requires prior high-privileged code execution capabilities. The vulnerability has been assigned a CVSS rating of 7.5 by ZDI, indicating a high severity level. No vendor advisory or patch information is currently available.
Potential Impact
Successful exploitation allows local attackers with existing high-privileged code execution capabilities to escalate privileges further on affected Linux Kernel installations. This could lead to unauthorized administrative control of the system.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no patch or official fix information is provided, users should monitor for updates from the Linux Kernel maintainers or Microsoft Security Response Center.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_vex
- Csaf Version
- 2.0
- Publisher
- Microsoft Security Response Center
- Advisory Id
- msrc_CVE-2026-46319
- Cve Count
- 1
Threat ID: 6a294d9c8dd33fbd853b00d8
Added to database: 06/10/2026, 11:42:20 UTC
Last enriched: 08/13/2026, 20:47:32 UTC
Last updated: 09/14/2026, 10:01:31 UTC
Views: 81
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