CVE-2026-65784: Windows NTFS Information Disclosure Vulnerability
Out-of-bounds read in Windows NTFS allows an authorized attacker to disclose information locally.
CSIRTS triage
- What
- Out-of-bounds read in Windows NTFS allows an authorized attacker to disclose information locally.
- Who is affected
- Authorized local users with access to NTFS filesystems.
- Urgency
- Medium priority; requires local authorization and only enables information disclosure.
- Action
- Apply Microsoft security patch when available; restrict local account access where possible.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-65784
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-657840.30% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 23% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-65784 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
Recent advisories for Windows NTFS Information
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- mediumCVE-2026-65784: Out-of-bounds read in Windows NTFS allows an authorized attacker to disclose information local…nvd · 2026-08-11
- mediumCVE-2026-62887: Out-of-bounds read in Windows NTFS allows an authorized attacker to disclose information local…nvd · 2026-08-11
- mediumCVE-2026-62796: Out-of-bounds read in Windows NTFS allows an authorized attacker to disclose information local…nvd · 2026-08-11
- mediumCVE-2026-62793: Buffer over-read in Windows NTFS allows an authorized attacker to disclose information locally…nvd · 2026-08-11
- mediumCVE-2026-61350: Buffer over-read in Windows NTFS allows an unauthorized attacker to disclose information with …nvd · 2026-08-11
- mediumCVE-2026-62793: Windows NTFS Information Disclosure Vulnerabilitymsrc · 2026-08-11
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