CVE-2026-62799
HighCVSS 7.8Exploitation Probability (EPSS)
Low risk17th percentile - higher than 17% 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 could elevate privileges on the system, potentially leading to full machine compromise.
Recommendation
Install the latest Windows security updates for the SMB Client.
Other vulnerabilities in Windows SMB Client
See all- CVE-2026-83789High
Heap-based buffer overflow in Windows SMB Client allows an unauthorized attacker to elevate privileges over a network.
- 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-2026-69544High
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-2026-62782Medium
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