Threats / Microsoft / CVE-2024-30088
CVE-2024-30088
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-08-04
Microsoft Windows vulnerability
Microsoft Windows Kernel time-of-check to time-of-use race condition allows privilege escalation. Actively exploited in ransomware campaigns.
Verdict
Today item, not a backlog item.
A TOCTOU race condition in the Windows Kernel enables attackers to escalate privileges by exploiting the window between security validation and resource use. Active exploitation in ransomware operations demonstrates immediate threat.
CISA KEV Yes · 2024-10-155Ransomware use Flagged5EPSS 0.68202 (verify live)6Exploit Public PoC7CVSS 73CISA SSVC Exploitation: active · Automatable: no · Impact: total4
01
Is it exploitable?
— the evidence, ranked above the scoreExploit available
Public proof-of-concept exploit code is cataloged for this vulnerability.We link the existence of the exploit; we do not host or redistribute payloads.
Reported exploitation
14 independent public reports of in-the-wild exploitation are cataloged.Distinct reporting sources (vendor, incident response, government); open them for the underlying claims.
Exploited in the wild
Listed in the CISA Known Exploited Vulnerabilities catalog (added 2024-10-15), flagged for known ransomware use.
Probability (EPSS)
EPSS 0.68202 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.
Severity / affected
CVSS 7 (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C) · Affected: Microsoft, Windows . Confirm exact fixed builds in the vendor advisory.CVSS — CNA-assigned (CVE.org), version 3.1, set at disclosure.
Weakness (CWE)
Mapped to CWE-367 TOCTOU Race Condition.CWE — CNA-assigned (CVE.org); the weakness class drives how the flaw is exploited.
CISA SSVC (triage disposition)
Exploitation: active · Automatable: no · Technical Impact: totalCISA's own stakeholder-specific triage inputs, published in the CVE record (CISA Coordinator role). NOTE: this is CISA's three decision points; the final Act/Attend/Track decision also requires a Mission & Well-being input not published here, so no overall decision is asserted.
Currency of the record
CISA added this to its KEV catalog 126 days after the CVE record was published.KEV lag = CISA-KEV dateAdded − CVE.org datePublished; a floor on how long the known-exploited flaw sat in the public record before the federal catalog listed it. Severity/weakness here is CNA- or CISA-assigned (current at disclosure), independent of NVD's analysis backlog.
WeaknessCWE-367 · TOCTOU Race Condition
02
Who’s exploiting it?
— attribution turns risk into urgencyAttribution not established
No confirmed (advisory-backed) threat-actor attribution is established for this record. Absence of a named actor is not absence of compromise — see Coverage & confidence.
03
Why it matters
— the attack path, told twice: adversary, then board1
Front door — unauthenticated access narrative 1
Attacker
I identify a kernel object or file state that is validated at one point but may change before use.
Business
Attackers gain a foothold to execute code with elevated privileges on affected systems.
2
Keys to the kingdom — privilege/identity takeover narrative 2
Attacker
I craft a race condition by repeatedly modifying the target resource between the check and use windows.
Business
Privilege escalation becomes reliable enough to weaponize at scale across enterprise environments.
3
Lateral reach — past segmentation narrative 3
Attacker
I execute malicious code with kernel-level privileges to disable security controls or install persistence mechanisms.
Business
Ransomware operators establish durable access and bypass endpoint detection, enabling encryption and extortion.
04
What to do
— defensible action- Remediate per the vendor advisory — confirm the fixed build for your version and verify exposure.1
Say it to the boardA vulnerability with this evidence profile is a defensible budget line, not a backlog ticket — fund the change against the proof above.
05