CVE-2024-49147

Name: CVE-2024-49147
Creator: NVD / NIST
Published: 2024-12-12T19:15:13.057+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.29%

Last modified Jun 17, 2026

CVE-2024-49147 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Deserialization of untrusted data in Microsoft Update Catalog allows an unauthorized attacker to elevate privileges on the website’s webserver.. EPSS estimates a 1.29% chance of exploitation in the next 30 days.

Description

Deserialization of untrusted data in Microsoft Update Catalog allows an unauthorized attacker to elevate privileges on the website’s webserver.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

1.29%

66.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-502

Affected Software

Vendor	Product	Versions
Microsoft	Update Catalog	All versions

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-49147Vendor Advisory

Timeline

Published: Dec 12, 2024
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2024-49147?

Deserialization of untrusted data in Microsoft Update Catalog allows an unauthorized attacker to elevate privileges on the website’s webserver.

How severe is CVE-2024-49147?

CVE-2024-49147 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.29% probability of exploitation in the next 30 days.

How do I fix CVE-2024-49147?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-49147?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST