EUVD-2026-73298
GHSA-4259-xrjq-w65p
Severity by source
AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Network-accessible SQL Server, PR:L for required low-privilege credential, AC:H for memory-condition complexity; S:C and full C/I/A reflect OS-level RCE potential.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
4DescriptionCVE.org
Untrusted pointer dereference in SQL Server allows an authorized attacker to execute code over a network.
AnalysisAI
Remote code execution in Microsoft SQL Server allows an authenticated low-privilege attacker to exploit an untrusted pointer dereference (CWE-822) over the network, achieving full compromise of the host with scope change beyond the database engine. Affected instances span SQL Server 2019, 2022, and 2025 across both Cumulative Update and GDR servicing branches. …
Unlock full vulnerability intelligence
- Risk assessment & exploitation conditions
- Attack chain visualization
- Remediation with exact patch versions
- Threat intelligence from 22 sources
- Personal watchlist & email alerts
Free forever · No credit card required
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a valid SQL Server login with at minimum low-privilege database access - this aligns with the CVSS PR:L metric and the description's phrasing 'authorized attacker.' The SQL Server instance must be reachable over the network (default port 1433). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | CVSS 8.5 is credible given the scope change and full C:H/I:H/A:H triad, though AC:H moderates the immediate risk by requiring specific memory or race conditions for reliable exploitation. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Apply the vendor-released cumulative update or GDR patch for the installed SQL Server version: upgrade SQL Server 2019 CU32 to 15.0.4490.9 or later, SQL Server 2019 GDR to 15.0.2190.7 or later, SQL Server 2022 CU26 to 16.0.4275.2 or later, SQL Server 2022 GDR to 16.0.1200.5 or later, SQL Server 2025 CU8 to 17.0.4085.5 or later, and SQL Server 2025 GDR to 17.0.1135.8 or later. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify and catalog all SQL Server 2019, 2022, and 2025 deployments, noting which users or services have low-privilege database access and which systems are internet-exposed or connected to trusted networks. …
Sign in for detailed remediation steps and compensating controls.
Threat intelligence, references, and detailed analysis are available after sign-in.
More in Sql Server 2019
View allSQL Server 2016-2025 contains an improper access control flaw that allows authenticated network attackers to escalate pr
Microsoft SQL Server Elevation of Privilege Vulnerability. Rated critical severity (CVSS 9.8), this vulnerability is rem
Microsoft SQL Server Elevation of Privilege Vulnerability. Rated critical severity (CVSS 9.8), this vulnerability is rem
Remote code execution in Microsoft SQL Server 2019, 2022, and 2025 is achievable by an authenticated low-privilege attac
Heap-based buffer overflow in Microsoft SQL Server 2017 and 2019 enables unauthenticated network attackers to execute ar
SQL injection in Microsoft SQL Server enables a low-privileged authenticated attacker to escalate database privileges ov
Privilege escalation in Microsoft SQL Server 2017 through 2025 allows any low-privileged authenticated database user to
Heap-based buffer overflow in Microsoft SQL Server 2017 through 2025 enables an authenticated low-privilege network atta
SQL injection in Microsoft SQL Server (versions 2017 through 2025) enables a network-authenticated low-privilege attacke
Heap-based buffer overflow in Microsoft SQL Server enables an authenticated, low-privileged network attacker to achieve
Heap-based buffer overflow in Microsoft SQL Server (versions 2017 through 2025) enables any authenticated network attack
Privilege escalation in Microsoft SQL Server (versions 2017, 2019, 2022, and 2025) allows a low-privileged authenticated
Same weakness CWE-822 – Untrusted Pointer Dereference
View allShare
External POC / Exploit Code
Leaving vuln.today