CVE-2024-30088: in the CISA KEV catalogue
Microsoft Windows Kernel TOCTOU Race Condition Vulnerability. CISA added CVE-2024-30088 to the Known Exploited Vulnerabilities catalogue on 2024-10-15 with a default due date of 2024-11-05. Known ransomware campaign use: Known. Forensic triage flag: No.
Microsoft Windows Kernel contains a time-of-check to time-of-use (TOCTOU) race condition vulnerability that could allow for privilege escalation. (CISA description)
- Vendor / product
- Microsoft Windows
- CWE
- CWE-367
- CISA required action
- Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
- EPSS
- 68%, percentile 99 (scored 2026-11-03)
EPSS puts about 68 in 100 odds (68%) on exploitation activity being observed in the next 30 days. Its score is higher than or equal to that of 99% of scored CVEs. This is a model estimate about exploitation anywhere, not about your environment.
Vendor and reference links (from CISA)
Your own deadline under CISA BOD 26-04 depends on exposure, automatability and technical impact: work it out with the BOD 26-04 calculator.
Frequently asked questions
Is CVE-2024-30088 in the CISA KEV catalogue?
Yes. CISA added CVE-2024-30088 (Microsoft Windows Kernel TOCTOU Race Condition Vulnerability) to the Known Exploited Vulnerabilities catalogue on 2024-10-15. CISA's default due date for it is 2024-11-05.
Is CVE-2024-30088 used in ransomware attacks?
CISA marks known ransomware campaign use as Known for CVE-2024-30088.
What should I do about CVE-2024-30088?
CISA's required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Sources
- CISA, Known Exploited Vulnerabilities Catalog (accessed 2026-11-03)
- FIRST, Exploit Prediction Scoring System (EPSS) (EPSS by FIRST; scores generated by Empirical Security)
- NVD record for CVE-2024-30088