CVE-2026-77488
MediumCVSS 5.5Exploitation Probability (EPSS)
Low risk23th percentile - higher than 23% of all known CVEs
Summary
Integer underflow (wrap or wraparound) in SQL Server allows an authorized attacker to disclose information locally.
Risk Assessment
An attacker could exploit the flaw to read data they should not have access to.
Recommendation
Apply security updates for SQL Server.
Other vulnerabilities in SQL Server
See all- CVE-2026-67636Critical
An out-of-bounds read in SQL Server allows an unauthorized attacker to execute code over a network.
- CVE-2026-67378Critical
An untrusted pointer dereference in SQL Server allows an unauthorized attacker to execute code over a network.
- CVE-2026-65669Critical
Improper neutralization of special elements in output used by a downstream component ('injection') in SQL Server allows an unauthorized attacker to elevate privileges over a network.
- CVE-2026-54118Critical
A vulnerability in SQL Server allows an unauthorized attacker to execute code over a network through deserialization of untrusted data.
- CVE-2026-54117Critical
A vulnerability in SQL Server allows an unauthorized attacker to execute code over a network through deserialization of untrusted data.
- CVE-2026-78456High
Heap-based buffer overflow in SQL Server allows an authorized attacker to execute code over a network.
- CVE-2026-77487High
SQL Server has improper access control that allows an authorized attacker to elevate privileges over a network.
- CVE-2026-77486High
SQL Server has an integer overflow or wraparound vulnerability that allows an unauthorized attacker to execute code over a network.
- CVE-2026-77485High
SQL Server has a use-after-free vulnerability that allows an authorized attacker to elevate privileges locally.
- CVE-2026-77484High
SQL Server has a deserialization of untrusted data vulnerability that allows an authorized attacker to execute code over a network.
Original NVD description (English source)
Integer underflow (wrap or wraparound) in SQL Server allows an authorized attacker to disclose information locally.