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Sql 2016 Azure Connect Feature PackApplication · Microsoft

CVE-2024-26191

HIGH · 8.8 CVSS v3.1 Published 2024-09-10
Fix available
A fix is available. Upgrade to 13.0.6441.1 / 14.0.2060.1 or later.
See remediation →
94/100
Remediation priority · Urgent
Remotely reachable Zero-click Patch available

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Microsoft SQL Server Native Scoring Remote Code Execution Vulnerability

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis
How this class of weakness works · CWE-122

Data overflows a buffer allocated on the heap, corrupting neighbouring heap structures and allocator metadata that a patient attacker can groom into control of execution. It is subtler than a stack overflow but just as dangerous. The fix is validating lengths before every write and using safe allocators and bounded operations.

General guidance for the heap-based buffer overflow class — the official description and references above are authoritative for this specific CVE. Want a bespoke review and a reviewed fix? Ask our team →

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Sql 2016 Azure Connect Feature PackApplication
Affected:>= 13.0.7000.253, <= 13.0.7037.1
Sql Server 2016Application
Affected:>= 13.0.6300.2, < 13.0.6441.1
Sql Server 2017Application
Affected:>= 14.0.1000.169, < 14.0.2060.1>= 14.0.3006.16, < 14.0.3475.1
Sql Server 2019Application
Affected:>= 15.0.2000.5, < 15.0.2120.1>= 15.0.4003.23, < 15.0.4390.2
Sql Server 2022Application
Affected:>= 16.0.1000.6, < 16.0.1125.1>= 16.0.4003.1, < 16.0.4140.3

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 13.0.6441.1 / 14.0.2060.1 / 14.0.3475.1 or later
Fixed in 13.0.6441.114.0.2060.114.0.3475.1
Vendor patch msrc.microsoft.com →
Recommended fix High confidence

Upgrade to the first fixed build in your version branch: 13.0.6441.1 (SQL 2016), 14.0.2060.1/14.0.3475.1 (SQL 2017), 15.0.2120.1/15.0.4390.2 (SQL 2019), or 16.0.1125.1/16.0.4140.3 (SQL 2022)

  1. Identify current SQL Server version by running SELECT @@VERSION in SQL Server Management Studio
  2. Determine which version branch you're on (2016, 2017, 2019, or 2022) and check if your build number falls within the vulnerable ranges listed
  3. For SQL Server 2016: Upgrade to build 13.0.6441.1 or later
  4. For SQL Server 2017: If on 14.0.1000.169+ but <14.0.2060.1, upgrade to 14.0.2060.1 or later; if on 14.0.3006.16+ but <14.0.3475.1, upgrade to 14.0.3475.1 or later
  5. For SQL Server 2019: If on 15.0.2000.5+ but <15.0.2120.1, upgrade to 15.0.2120.1 or later; if on 15.0.4003.23+ but <15.0.4390.2, upgrade to 15.0.4390.2 or later
  6. For SQL Server 2022: If on 16.0.1000.6+ but <16.0.1125.1, upgrade to 16.0.1125.1 or later; if on 16.0.4003.1+ but <16.0.4140.3, upgrade to 16.0.4140.3 or later
  7. Download and install the appropriate Cumulative Update (CU) containing the security fix from Microsoft Update Catalog or through Windows Update
  8. Restart SQL Server services as required by the update installation
Caveat Standard SQL Server Cumulative Update installation; review release notes for any known issues specific to your version branch before applying

Generated from the published advisory — verify against the referenced sources before acting.

We can perform the upgrade in your staging environment and verify nothing breaks — typical engagement from $1,950. Get the upgrade done

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2024-26191 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data