CVE-2024-29059

Info Disclosure in Microsoft .Net Framework 2.0 … 4.8.1

CISA KEVActive ExploitationEUVD ExploitedInfo Disclosure

Published

23 March 2024

Modified

17 June 2026

KEV Added

04 February 2025

Patch / advisory

View advisory

CVSS Score v3.1 7.5

Click a component to see what it means

Raw vector

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

EPSS Score 0.99 99.9th percentile

Risk Priority 84 floored blend · peak EPSS

Summary

CVE-2024-29059 is a high-severity Generation of Error Message Containing Sensitive Information (CWE-209) vulnerability in Microsoft .Net Framework. Its CVSS base score is 7.5 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Software (T1592.002); ranked in the top 0.1% of CVEs by exploit likelihood; CISA has added it to the Known Exploited Vulnerabilities catalog.

The strongest mitigations our analysis identified map to SI-11 (Error Handling) — see the control section below for these in your framework.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

CVE-2024-29059 is an information disclosure vulnerability in the .NET Framework, assigned CWE-209 and carrying a CVSS 3.1 base score of 7.5. The flaw allows an unauthenticated remote attacker to obtain sensitive information from affected .NET Framework installations when the component processes certain requests.

An attacker with network access can exploit the weakness without credentials or user interaction to read data that should remain confidential, potentially exposing internal application details or configuration information. The attack requires no special privileges and leaves integrity and availability untouched.

Microsoft has published remediation guidance through its Security Response Center, and the vulnerability appears in CISA’s catalog of known exploited vulnerabilities, confirming that in-the-wild exploitation has been observed. The associated EPSS score currently stands at 0.9358 with a recorded peak of 0.9388, indicating sustained attacker interest after public disclosure.

OWASP Top 10 for Web (2025)

EU & UK References

🇪🇺 ENISA EUVD: EUVD-2024-26106

Vulnerability Data

.NET Framework Information Disclosure Vulnerability

CWE(s): CWE-209
KEV Date Added: 04 February 2025

Related Threats

MITRE ATT&CK Enterprise Techniques

T1592.002 Software Reconnaissance

Adversaries may gather information about the victim's host software that can be used during targeting.

attack.mitre.org →

T1082 System Information Discovery Discovery

An adversary may attempt to get detailed information about the operating system and hardware, including version, patches, hotfixes, service packs, and architecture.

attack.mitre.org →

T1592 Gather Victim Host Information Reconnaissance

Adversaries may gather information about the victim's hosts that can be used during targeting.

attack.mitre.org →

T1595 Active Scanning Reconnaissance

Adversaries may execute active reconnaissance scans to gather information that can be used during targeting.

attack.mitre.org →

Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2024-21313Same product: Microsoft Windows 10 1507

CVE-2025-53803Same product: Microsoft Windows 10 1507

CVE-2013-7331Same product: Microsoft Windows Server 2008both on KEV

CVE-2023-36424Same product: Microsoft Windows 10 1507both on KEV

CVE-2024-26169Same product: Microsoft Windows 10 1507both on KEV

CVE-2024-38112Same product: Microsoft Windows 10 1507both on KEV

CVE-2024-35250Same product: Microsoft Windows 10 1507both on KEV

CVE-2024-43461Same product: Microsoft Windows 10 1507both on KEV

CVE-2024-38014Same product: Microsoft Windows 10 1507both on KEV

CVE-2024-38193Same product: Microsoft Windows 10 1507both on KEV

Affected Assets

microsoft

.net framework

2.0, 3.0, 3.5, 3.5.1, 4.6

Mitigating Controls

Control response

Prevent

Stop it (NIST 800-53)

—

Detect

Catch it (NIST detect / respond)

—

Harden

Shrink the surface (DISA STIG)

—

Validate

Prove the fix (OWASP ASVS)

V16.5.1

Mitigating Controls (NIST 800-53 r5) AI

SI-11 Error Handling good match

si-11 directly requires error messages to avoid revealing exploitable information about the system or its data.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match

prevents

Secure SDLC practices directly require sanitized error handling to prevent sensitive data disclosure.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.28 Secure coding mostly match

prevents

Secure coding standards explicitly forbid exposing sensitive data in errors.

A.8.29 Security testing in development and acceptance mostly match

finds

Security testing can detect error messages that leak sensitive information.

A.8.15 Logging partial match

degrades

Logging policy can require suppression of sensitive data in error messages.

A.8.25 Secure development life cycle partial match

prevents

Secure SDLC mandates error-handling rules that avoid leaking sensitive information.