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CVE-2024-38177

22
FAUCET Score

CVE-2024-38177 is a high-severity spoofing vulnerability affecting the Microsoft App Installer. With a CVSS score of 7.8, it allows an unauthenticated attacker to achieve high impact on confidentiality, integrity, and availability through a low-complexity attack requiring user interaction. While not currently listed on the KEV catalog or Hot List, and lacking public exploit code in Metasploit, Nuclei, or ExploitDB, it has garnered some community discussion and media coverage, indicating awareness within the security community.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.22.11261.0CPE matchmatch criteria
cpe:2.3:a:microsoft:app_installer:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.86%
Probability of exploitation in next 30 days
EPSS Percentile
54.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0086 is in the 51st percentile among its peer group of 11,617 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

microsoftpatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: App InstallerFixed in: 1.22.11261.0
View patch

Vendor Advisories (1)

microsoft2024-Aug/CVE-2024-38177Important

Windows App Installer Spoofing Vulnerability

Aug 13, 2024

References

msrc.microsoft.com / update-guide/vulnerability/CVE-2024-38177
PatchVendor Advisory