CVE-2026-67625: CWE-122: Heap-based Buffer Overflow in Microsoft Microsoft SQL Server 2017 (GDR)
Description
Heap-based buffer overflow in SQL Server allows an authorized attacker to execute code over a network.
CVSS v3.1
Score 8.5high
Affected software
Microsoft
Microsoft SQL Server 2017 (GDR)
Microsoft
Microsoft SQL Server 2017 for x64-based Systems (CU31)
Microsoft
Microsoft SQL Server 2019 (GDR)
Microsoft
Microsoft SQL Server 2019 for x64-based Systems (CU32)
Microsoft
Microsoft SQL Server 2022 (GDR)
Microsoft
Microsoft SQL Server 2022 for x64-based Systems (CU27)
Microsoft
Microsoft SQL Server 2025 for x64-based Systems (CU9)
Microsoft
Microsoft SQL Server 2025 for x64-based Systems (GDR)
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-67625) is a heap-based buffer overflow in Microsoft SQL Server 2017 (GDR) and later versions. It enables an attacker with limited privileges to execute arbitrary code remotely over a network. The vulnerability affects several version ranges starting from 14.0.0 up to various fixed versions below 17.0.1145.4. The CVSS 3.1 vector indicates network attack vector, high complexity, low privileges required, no user interaction, and complete confidentiality, integrity, and availability impact. Microsoft has published an official fix for this vulnerability.
Potential Impact
An attacker authorized on the network can exploit this vulnerability to execute arbitrary code with high impact on confidentiality, integrity, and availability of the affected SQL Server instances. This could lead to full compromise of the database server.
Mitigation Recommendations
An official fix is available from Microsoft. Users should apply the security updates provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-67625 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-07-29T22:49:19.795Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-67625","vendor":"Microsoft"}]
Threat ID: 6ace99932cdf04f656ad1191
Added to database: 10/13/2026, 20:50:27 UTC
Last enriched: 10/13/2026, 21:04:31 UTC
Last updated: 10/14/2026, 00:28:14 UTC
Views: 6
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.