CVE-2026-69544
HighCVSS 7.8Exploitation Probability (EPSS)
Low risk24th percentile - higher than 24% of all known CVEs
Summary
Heap-based buffer overflow in Windows SMB Client allows an authorized attacker to elevate privileges locally.
Risk Assessment
An attacker with local access could exploit the vulnerability to gain elevated privileges, potentially leading to full system control.
Recommendation
Apply the security update for the SMB client and restrict system 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-2026-72936High
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-2026-65794Medium
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)
Heap-based buffer overflow in Windows SMB Client allows an authorized attacker to elevate privileges locally.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS