EUVD-2026-73478
GHSA-jj76-5prw-fj7r
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Local attack vector with low privileges confirmed by 'authorized attacker locally'; C:H for OOB read memory disclosure; no integrity or availability impact.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
3DescriptionCVE.org
Out-of-bounds read in Windows DNS allows an authorized attacker to disclose information locally.
AnalysisAI
Out-of-bounds read in the Windows DNS component exposes memory contents to locally authenticated attackers across a wide range of Windows Server and Windows 10 versions. The flaw (CWE-125) allows a low-privileged local attacker to read memory beyond the intended buffer boundary, resulting in high-confidence information disclosure with no integrity or availability impact. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires an authenticated local session on the affected Windows system with at least low-level privileges (PR:L per CVSS), consistent with any standard user or service account. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS base score of 5.5 (Medium) appropriately reflects the constrained attack surface: exploitation is local-only (AV:L), requires low privileges (PR:L), and produces no integrity or availability impact (I:N/A:N). … 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 vendor-released patches via Windows Update or WSUS targeting the fixed build versions listed above for each affected OS version. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-125 – Out-of-bounds Read
View allSame technique Buffer Overflow
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External POC / Exploit Code
Leaving vuln.today