EUVD-2026-73058
GHSA-p89r-66m4-75p6
Severity by source
AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Local access required (AV:L), race/heap condition makes it AC:H, standard user privileges needed (PR:L), full post-exploitation SYSTEM-level compromise justifies C:H/I:H/A:H.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
3DescriptionCVE.org
Use after free in Windows Print Spooler Components allows an authorized attacker to elevate privileges locally.
AnalysisAI
Privilege escalation via use-after-free in Windows Print Spooler Components (spoolsv.exe) allows a locally authenticated low-privileged user to gain SYSTEM-level access across a broad range of Windows client and server versions from Server 2012 R2 through Windows 11 25H2. Exploitation requires high attack complexity, suggesting a race condition or precise heap manipulation, but success yields full system compromise (C:H/I:H/A:H). …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires an authenticated local session on the target Windows system (PR:L) - the attacker must already have the ability to run code as a standard (non-administrator) user on the machine. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 vector (AV:L/AC:H/PR:L/UI:N, Score 7.0) accurately reflects a local privilege escalation requiring an authenticated user and elevated exploitation complexity - suggesting a race condition or precise heap feng-shui rather than a trivial trigger. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Apply the cumulative Windows updates released by Microsoft that bring each affected build to or above the patched thresholds listed in the affected products section. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Inventory Windows systems running Server 2012 R2 through Windows 11 25H2, prioritizing critical infrastructure and shared workstations where privilege escalation poses the greatest risk. …
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Same weakness CWE-416 – Use After Free
View allSame technique Denial Of Service
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External POC / Exploit Code
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