Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2021-39799

23
FAUCET Score

CVE-2021-39799 is a high-severity permission bypass vulnerability in the AttributionSource component of Android 12 and 12L. This flaw, caused by improper input validation, allows for local escalation of privilege without requiring user interaction or additional execution privileges. With a CVSS score of 7.8, it presents a significant risk for confidentiality, integrity, and availability. While no public exploits, Metasploit modules, or Nuclei templates are currently available, and there's no evidence of active exploitation or significant community discussion, the vulnerability's nature warrants attention.

Impacted Technologies

VendorProductVersion(s)CPE
12.0CPE matchmatch criteria
cpe:2.3:o:google:android:12.0:*:*:*:*:*:*:*
12.1CPE matchmatch criteria
cpe:2.3:o:google:android:12.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
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
0.11%
Probability of exploitation in next 30 days
EPSS Percentile
1.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0011 is in the 8th percentile among its peer group of 17,070 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

No media coverage found for this CVE.

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 (1)

googlepatch availablevia nvd_reference
View patch

References

source.android.com / security/bulletin/2022-04-01
PatchVendor Advisory