EXPOSURES › CVE-2026-67631
CVE-2026-67631
CRITICALA heap-based buffer overflow in Microsoft SQL Server allows remote code execution over a network.
This critical vulnerability enables an attacker to execute arbitrary code remotely, directly violating CMMC/NIST 800-171 requirements for preventing unauthorized access and ensuring system integrity. DIB organizations must ensure SQL Server is patched immediately, as unpatched critical flaws like this are high-embarrassment failures that demonstrate negligence in maintaining secure configurations.
Shame score — A critical, remotely exploitable RCE in a widely deployed database server represents a severe, avoidable failure in patch management and supply-chain security.
▸ RECOMMENDED ACTION Remote code execution — patch the affected products on priority.
Heap-based buffer overflow in SQL Server allows an unauthorized attacker to execute code over a network.
| PRODUCT | STATUS |
|---|---|
| Azure Commercial Cloud Microsoft |
Authorized |
| Azure Government (includes Dynamics 365) Microsoft |
Authorized |
| Microsoft Office 365 GCC High Microsoft |
In Process |
| Office 365 Multi-Tenant & Supporting Services Microsoft |
Authorized |