CVE-2026-94512
HighCVSS 8.8Summary
Heap-based buffer overflow in SQL Server allows an authorized attacker to execute code over a network. The vulnerability can be exploited remotely, posing a serious threat to system integrity.
Risk Assessment
An authorized attacker can remotely execute arbitrary code on the SQL server, potentially leading to full compromise of the database and system. This could result in data loss, confidentiality breaches, and service disruption.
Recommendation
Apply security patches provided by the vendor for SQL Server immediately. Also, restrict network access to the server to trusted hosts only.
Other vulnerabilities in Microsoft SQL Server
See all- CVE-2026-88088High
Integer overflow or wraparound in SQL Server allows an authorized attacker to elevate privileges locally. The vulnerability can be exploited to gain higher privileges on the system.
- CVE-2026-88083High
Stack-based buffer overflow in SQL Server allows an unauthorized attacker to execute code over a network. The vulnerability can be exploited remotely without authentication, posing a serious threat.
- CVE-2026-88082High
Heap-based buffer overflow in SQL Server allows an authorized attacker to elevate privileges locally. The vulnerability can be exploited to gain higher privileges on the system.
- CVE-2026-88081High
Out-of-bounds read in SQL Server allows an authorized attacker to disclose information over a network. The vulnerability can be exploited to remotely read data.
- CVE-2026-85919High
Heap-based buffer overflow in SQL Server allows an authorized attacker to elevate privileges locally. The vulnerability can be exploited to gain higher privileges on the system.
- CVE-2016-7249High
Microsoft SQL Server 2016 does not properly perform a cast of an unspecified pointer, allowing remote authenticated users to gain privileges via unknown vectors.
- CVE-2026-67643Critical
Heap-based buffer overflow in SQL Server allows an unauthorized attacker to execute code over a network.
- CVE-2026-67631Critical
Heap-based buffer overflow in SQL Server allows an unauthorized attacker to execute code over a network.
- CVE-2019-1068HighActively exploited
A remote code execution vulnerability exists in Microsoft SQL Server due to improper handling of internal functions. An attacker could exploit it to execute arbitrary code on the server.
- CVE-2000-0402Low
The vulnerability in Microsoft SQL Server 7.0 allows the Mixed Mode authentication mechanism to store the System Administrator (sa) account password in plaintext in a log file, which is accessible to any user.
Original NVD description (English source)
Heap-based buffer overflow in SQL Server allows an authorized attacker to execute code over a network.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS