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CVE-2021-0673

26
FAUCET Score

CVE-2021-0673 is a high-severity permission bypass vulnerability in the Audio Aurisys HAL, affecting Google and MediaTek products, specifically Android smartphones. This flaw allows for local escalation of privilege without requiring user interaction or additional execution privileges. With a CVSS score of 7.8, exploitation is low complexity and can lead to high impact on confidentiality, integrity, and availability. While not listed in CISA's KEV catalog, media coverage indicates widespread impact, with reports of it affecting a significant percentage of Android devices and potentially enabling eavesdropping. There is no public exploit code available (Metasploit, Nuclei, ExploitDB), and community discussion is limited, suggesting it is not currently under active exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
10.0CPE matchmatch criteria
cpe:2.3:o:google:android:10.0:*:*:*:*:*:*:*
11.0CPE matchmatch criteria
cpe:2.3:o:google:android:11.0:*:*:*:*:*:*:*
12.0CPE matchmatch criteria
cpe:2.3:o:google:android:12.0:*:*:*:*:*:*:*

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
0.67%
Probability of exploitation in next 30 days
EPSS Percentile
48.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0067 is in the 85th percentile among its peer group of 16,994 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 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

corp.mediatek.com / product-security-bulletin/December-2021
Vendor Advisory