CVE-2024-43474Network attack vector

Authenticated information disclosure via improper null termination

Published Sep 10, 2024 · Updated Aug 10, 2026

Improper null termination in Microsoft SQL Server 2017 and 2019 allows remote authenticated users to disclose sensitive information. Microsoft maps the flaw to improper null termination but has not disclosed the affected component or the operation that mishandles the terminator. Network access with low privileges is required; exploitation needs no user interaction and can expose information while causing limited data or service impact.

CVSS severity7.6
High
EPSS probability1.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper null termination in Microsoft SQL Server 2017 and 2019 allows remote authenticated users to disclose sensitive information. Microsoft maps the flaw to improper null termination but has not disclosed the affected component or the operation that mishandles the terminator. Network access with low privileges is required; exploitation needs no user interaction and can expose information while causing limited data or service impact.

The record

CVE
CVE-2024-43474
Published
Sep 10, 2024
Updated
Aug 10, 2026
Vendor
Microsoft
Product
Microsoft SQL Server 2019
Classifications
CWE-170
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 10, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 10, 2026Record 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=15.0.0 <15.0.2120.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Microsoft · Microsoft SQL Server 2019version=15.0.0 <15.0.2120.1
Microsoft · Microsoft SQL Server 2017version=14.0.0 <14.0.2060.1; version=14.0.0 <14.0.3475.1

Published CVSS scores

7.6Microsoft CorporationCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-170Improper Null Termination

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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