CVE-2026-84011
MediumCVSS 5.5Exploitation Probability (EPSS)
Low risk20th percentile - higher than 20% of all known CVEs
Summary
An incorrect authorization vulnerability in Windows SMB Client allows an authorized attacker to bypass a security feature locally. The issue involves improper authorization checks.
Risk Assessment
An authorized attacker with local access may bypass a system security feature. This can lead to unauthorized access to resources.
Recommendation
Apply Microsoft security updates for Windows SMB Client. Restrict local access to trusted users.
Other vulnerabilities in Windows SMB Client
See all- CVE-2026-40410High
Use after free in Windows SMB Client allows an authorized attacker to elevate privileges locally.
- CVE-2026-83789High
Heap-based buffer overflow in Windows SMB Client allows an unauthorized attacker to elevate privileges over a network.
- CVE-2026-72936High
Use after free in Windows SMB Client allows an unauthorized attacker to execute code over a network.
- CVE-2026-69618Medium
An out-of-bounds read vulnerability in Windows SMB Client allows an authorized attacker to disclose information locally.
- CVE-2026-69572Medium
An out-of-bounds read vulnerability in Windows SMB Client allows an authorized attacker to disclose information over a network.
- CVE-2026-69544High
Heap-based buffer overflow in Windows SMB Client allows an authorized attacker to elevate privileges locally.
- CVE-2026-65794Medium
A buffer over-read in Windows SMB Client allows an unauthorized attacker to disclose information over a network.
- CVE-2026-62799High
Heap-based buffer overflow in Windows SMB Client allows an authorized attacker to elevate privileges locally.
- CVE-2026-62782Medium
An out-of-bounds read in Windows SMB Client allows an unauthorized attacker to disclose information over a network.
Original NVD description (English source)
Incorrect authorization in Windows SMB Client allows an authorized attacker to bypass a security feature locally.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS