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CVE-2021-0623

20
FAUCET Score

CVE-2021-0623 describes an out-of-bounds read vulnerability in the ASF extractor component affecting Google and MediaTek products, stemming from an integer overflow. This medium-severity flaw (CVSS 5.5) allows for local information disclosure without user interaction or elevated privileges. While the vulnerability has a low EPSS score and no known public exploits or community discussion, it still poses a risk for affected systems. There is no evidence of active exploitation, nor are there publicly available exploit tools like Metasploit or Nuclei modules.

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:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.11%
Probability of exploitation in next 30 days
EPSS Percentile
1.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0011 is in the 10th percentile among its peer group of 15,940 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

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 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/November-2021
Vendor Advisory