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CVE-2021-31936

23
FAUCET Score

CVE-2021-31936 is an information disclosure vulnerability affecting Microsoft Accessibility Insights for Web. With a CVSS score of 7.4 (High), it can be exploited remotely with low attack complexity, requiring user interaction to disclose sensitive information. While the vulnerability is not listed in CISA's KEV catalog and no public exploit code exists, it received limited community discussion and media coverage at the time of its disclosure.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.26.0CPE matchmatch criteria
cpe:2.3:a:microsoft:accessibility_insights_for_web:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.4HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
4.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
3.28%
Probability of exploitation in next 30 days
EPSS Percentile
87.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0328 is in the 86th percentile among its peer group of 14,875 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 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 0.1 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

microsoftpatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: Microsoft Accessibility Insights for WebFixed in: 2.26.0
View patch

Vendor Advisories (1)

microsoft2021-May/CVE-2021-31936Important

Microsoft Accessibility Insights for Web Information Disclosure Vulnerability

May 11, 2021

References

portal.msrc.microsoft.com / en-US/security-guidance/advisory/CVE-2021-31936
PatchVendor Advisory