CVE-2024-49016Network attack vector

Remote code execution via use-after-free

Published Nov 12, 2024 · Updated Jul 8, 2025

Use-after-free in SQL Server Native Client in Microsoft SQL Server 2016 through 2019 allows remote attackers to execute arbitrary code. Microsoft identifies the lifetime error as use-after-free but has not published the affected function, object, or crafted input that releases and reuses it. Exploitation requires user interaction on an affected system; successful execution compromises the client process's data and operation.

CVSS severity8.8
High
EPSS probability1.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in SQL Server Native Client in Microsoft SQL Server 2016 through 2019 allows remote attackers to execute arbitrary code. Microsoft identifies the lifetime error as use-after-free but has not published the affected function, object, or crafted input that releases and reuses it. Exploitation requires user interaction on an affected system; successful execution compromises the client process's data and operation.

The record

CVE
CVE-2024-49016
Published
Nov 12, 2024
Updated
Jul 8, 2025
Vendor
Microsoft
Product
Microsoft SQL Server 2016 Service Pack 3 Azure Connect Feature Pack
Classifications
CWE-416, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 12, 2024CVE publishedPublication date reported by the CVE source.
  2. Jul 8, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=13.0.0 <13.0.7050.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Microsoft · Microsoft SQL Server 2016 Service Pack 3 Azure Connect Feature Packversion=13.0.0 <13.0.7050.2
Microsoft · Microsoft SQL Server 2019version=15.0.0 <15.0.2130.3; version=15.0.0 <15.0.4410.1
Microsoft · Microsoft SQL Server 2017version=14.0.0 <14.0.2070.1; version=14.0.0 <14.0.3485.1
Microsoft · Microsoft SQL Server 2016 Service Pack 3version=13.0.0 <13.0.6455.2

Published CVSS scores

8.8Microsoft CorporationCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-416Use After Free
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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