CVE-2023-28263

Local low-privileged information disclosure

Published Apr 11, 2023 · Updated Jan 23, 2025

Information disclosure in Microsoft Visual Studio 2019 and 2022 allows local users with low privileges to read sensitive information. Microsoft maps the flaw to improper null termination but has not disclosed the affected component, input path, or incorrect operation. Affected releases span 16.11.0 through 16.11.25 and the 17.0, 17.2, 17.4, and 17.5 branches through their documented affected endpoints.

CVSS severity5.5
Medium
EPSS probability0.56%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Microsoft Visual Studio 2019 and 2022 allows local users with low privileges to read sensitive information. Microsoft maps the flaw to improper null termination but has not disclosed the affected component, input path, or incorrect operation. Affected releases span 16.11.0 through 16.11.25 and the 17.0, 17.2, 17.4, and 17.5 branches through their documented affected endpoints.

The record

CVE
CVE-2023-28263
Published
Apr 11, 2023
Updated
Jan 23, 2025
Vendor
Microsoft
Product
Microsoft Visual Studio 2019
Classifications
CWE-170
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 11, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 23, 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=16.11.0 <16.11.26

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Microsoft · Microsoft Visual Studio 2019version=16.11.0 <16.11.26
Microsoft · Microsoft Visual Studio 2022 version 17.5version=17.5.0 <17.5.4
Microsoft · Microsoft Visual Studio 2022 version 17.4version=17.4.0 <17.4.7
Microsoft · Microsoft Visual Studio 2022 version 17.0version=17.0.0 <17.0.21
Microsoft · Microsoft Visual Studio 2022 version 17.2version=17.2.0 <17.2.15

Published CVSS scores

5.5Microsoft CorporationCVSS:3.1/AV:L/AC:L/PR:L/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
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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