Threats / Microsoft / CVE-2023-36036
CVE-2023-36036
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-06-22
Microsoft Windows vulnerability
Microsoft Windows Cloud Files Mini Filter Driver privilege escalation vulnerability allowing SYSTEM-level access. Exploited in the wild.
Verdict
Today item — known-exploited.
A privilege escalation flaw in Windows Cloud Files Mini Filter Driver enables attackers to obtain SYSTEM privileges. Active exploitation in the wild increases risk despite low EPSS score.
01
Is it exploitable?
— the evidence, ranked above the scoreReported exploitation
7 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 2023-11-14).
Probability (EPSS)
EPSS 0.16268 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.
Severity / affected
Affected: Microsoft, Windows. Confirm exact fixed builds in the vendor advisory.
Weakness (CWE)
Mapped to CWE-122 Heap-based Buffer Overflow — weakness family: Memory safety.CWE assignment from the public NVD record; the weakness class drives how the flaw is exploited.
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 execute code with user-level privileges and trigger the vulnerable mini filter driver to escalate to SYSTEM context.
Business
Attacker gains full system control, enabling installation of persistent malware, credential theft, and lateral movement across the network.
2
Keys to the kingdom — privilege/identity takeover narrative 2
Attacker
I leverage SYSTEM privileges to disable security controls, modify audit logs, and establish backdoor access.
Business
Incident response and forensic investigation become severely compromised; attackers maintain undetected persistence.
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