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CVE-2021-40448

22
FAUCET Score

CVE-2021-40448 is an information disclosure vulnerability affecting Microsoft Accessibility Insights for Android. This medium-severity flaw (CVSS 6.3) requires local access and user interaction, but once exploited, it could lead to high confidentiality impact. There is no evidence of active exploitation, and no public exploit code or Metasploit modules are available. Despite minimal community discussion, the vulnerability received media coverage as part of Microsoft's September 2021 Patch Tuesday.

Impacted Technologies

VendorProductVersion(s)CPE
< 2021.826.1CPE matchmatch criteria
cpe:2.3:a:microsoft:accessibility_insights_for_android:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.3MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
1.8
Impact Score
4.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.91%
Probability of exploitation in next 30 days
EPSS Percentile
85.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0291 is in the 94th percentile among its peer group of 5,758 CVEs.

Social Chatter

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

Media Mentions

The average CVE in this peer group has 0.1 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: Accessibility Insights for AndroidFixed in: 2021.826.1
View patch

Vendor Advisories (1)

microsoft2021-Sep/CVE-2021-40448Important

Microsoft Accessibility Insights for Android Information Disclosure Vulnerability

Sep 14, 2021

References

portal.msrc.microsoft.com / en-US/security-guidance/advisory/CVE-2021-40448
PatchVendor Advisory