CVE-2026-64530
Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks. https://security-tracker.debian.org/tracker/DSA-6405-1
CSIRTS triage
- What
- This vulnerability handles TC_ACT_CONSUMED in tcf_qevent_handle.
- Who is affected
- Deployments using the net/sched subsystem.
- Urgency
- Remediation is advised to ensure proper functionality, with no current exploitation reported.
- Action
- Apply the fix for handling TC_ACT_CONSUMED in tcf_qevent_handle.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.51% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 41% of all EPSS-scored CVEs.
Advisory coverage (4)
- unknownDSA-6405-1 linux - security updatedebian · 2026-07-31
- unknownMultiples vulnérabilités dans le noyau Linux de Red Hat (31 juillet 2026)cert-fr-avis · 2026-07-31
- criticalCVE-2026-64530: In the Linux kernel, the following vulnerability has been resolved: net/sched: cls_api: Handle…nvd · 2026-07-26
- highCVE-2026-64530: net/sched: cls_api: Handle TC_ACT_CONSUMED in tcf_qevent_handlemsrc · 2026-07-14
External references
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