Vulnerability

CVE-2025-59230

High· 7.8KEVCVSS7.8EPSS4%

.rules3/5

Microsoft Windows Improper Access Control Vulnerability

Microsoft Windows contains an improper access control vulnerability in Windows Remote Access Connection Manager which could allow an authorized attacker to elevate privileges locally.

Threat signal

89/100

Severe

Severity

high

CVSS

7.8

EPSS

Active

KEV

CISA KEV — actively exploited

221d overdue

AffectedMicrosoft — Windows

Added to KEV

2025-10-14

Federal patch due (BOD 22-01)

2025-11-04

Required action (CISA verbatim)

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Vendor advisory + references

CISA description: “Microsoft Windows contains an improper access control vulnerability in Windows Remote Access Connection Manager which could allow an authorized attacker to elevate privileges locally.”

CVSS

v3.1Open in FIRST calculator →

7.8/ 10HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack VectorLocalRequires local access — shell, console, or local app.
Attack ComplexityLowNo special conditions — exploit works reliably.
Privileges RequiredLowStandard user privileges sufficient.
User InteractionNoneFully automated — no victim action needed.
ScopeUnchangedImpact contained to the vulnerable component.
Confidentiality ImpactHighTotal disclosure of sensitive data.
Integrity ImpactHighTotal compromise of integrity — full data modification possible.
Availability ImpactHighTotal loss of availability — full DoS possible.

EPSS

Exploit prediction · 30-day horizonFIRST.org →

4.47%

probability of exploitation in next 30 days

p89

higher than 89% of all CVEs

3-day trend↑ 0pp

Mid-pack — moderate exploitation likelihood.

Vendor VEX

No VEX statements published for CVE-2025-59230. Vendors publish VEX (Vulnerability Exploitability eXchange) to assert per-product whether a CVE is actually exploitable in their distribution.

SSVCAct

Active exploitation with total impact on essential/support systems

exploitation: active
automatable: no
impact: total
mission: support

Lifecycle

2025-10-14Added to CISA KEVransomware: Unknown
2025-10-14Published
2025-11-04Federal patch due (BOD 22-01)
2026-06-12Last modified1 source

Mentions in news & research

research:tenableMicrosoft's June 2026 Patch Tuesday Addresses 198 CVEs ( CVE-2026-49160, CVE-2026-50507)3 d ago

No source-event history recorded yet. New revisions will appear here as ingestors re-fetch this CVE.