CVE-2026-67385
CVE-2026-67385 is a high-severity vulnerability in Microsoft Sql Server 2017 with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-416.
Key facts
- Severity: High (CVSS 3.x base score 8.8)
- EPSS exploit prediction: 1% (59th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-416
- Affected product: Microsoft Sql Server 2017
- Published:
- Last modified:
Description
Use after free in SQL Server allows an authorized attacker to execute code over a network.
Frequently asked questions
- What is CVE-2026-67385?
- Use after free in SQL Server allows an authorized attacker to execute code over a network.
- How severe is CVE-2026-67385?
- CVE-2026-67385 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2026-67385 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-67385?
- CVE-2026-67385 primarily affects Microsoft Sql Server 2017. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2026-67385?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2026-67385 published?
- CVE-2026-67385 was published on 2026-09-08 and last updated on 2026-09-16.
References
Affected products (4)
- cpe:2.3:a:microsoft:sql_server_2017:*:*:*:*:*:*:x64:*
- cpe:2.3:a:microsoft:sql_server_2019:*:*:*:*:*:*:x64:*
- cpe:2.3:a:microsoft:sql_server_2022:*:*:*:*:*:*:x64:*
- cpe:2.3:a:microsoft:sql_server_2025:*:*:*:*:*:*:x64:*
More vulnerabilities in Microsoft Sql Server 2017
- CVE-2026-67631 — Critical (CVSS 9.8): Heap-based buffer overflow in SQL Server allows an unauthorized attacker to execute code over a network.
- CVE-2026-54118 — Critical (CVSS 9.8): Deserialization of untrusted data in SQL Server allows an unauthorized attacker to execute code over a network.
- CVE-2026-54117 — Critical (CVSS 9.8): Deserialization of untrusted data in SQL Server allows an unauthorized attacker to execute code over a network.
- CVE-2026-78442 — High (CVSS 8.8): Heap-based buffer overflow in Windows OLE DB allows an unauthorized attacker to execute code over a network.
- CVE-2026-77487 — High (CVSS 8.8): Improper access control in SQL Server allows an authorized attacker to elevate privileges over a network.
- CVE-2026-77486 — High (CVSS 8.8): Integer overflow or wraparound in SQL Server allows an unauthorized attacker to execute code over a network.
All CVEs affecting Microsoft Sql Server 2017 →
Other CWE-416 (Use After Free) vulnerabilities
- CVE-2026-63795 — Critical (CVSS 10.0): In the Linux kernel, the following vulnerability has been resolved: 9p: avoid putting oldfid in p9_client_walk() error…
- CVE-2026-13782 — Critical (CVSS 10.0): Use after free in Browser in Google Chrome prior to 150.0.7871.47 allowed a remote attacker who had compromised the…
- CVE-2026-4725 — Critical (CVSS 10.0): Sandbox escape due to use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149…
- CVE-2026-4688 — Critical (CVSS 10.0): Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox…
- CVE-2025-24085 — Critical (CVSS 10.0): A use after free issue was addressed with improved memory management. This issue is fixed in iOS 18.3 and iPadOS 18.3,…
- CVE-2024-43102 — Critical (CVSS 10.0): Concurrent removals of certain anonymous shared memory mappings by using the UMTX_SHM_DESTROY sub-request of…