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CVE-2023-20734

20
FAUCET Score

CVE-2023-20734 is an out-of-bounds write vulnerability in the vcu component, affecting products from Google, Linux Foundation, and MediaTek. This flaw, caused by a missing bounds check, allows for local escalation of privilege, requiring System execution privileges but no user interaction. With a CVSS score of 6.7 (Medium), it poses a significant risk due to high impact on confidentiality, integrity, and availability. Currently, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion, suggesting it is not widely targeted.

Impacted Technologies

VendorProductVersion(s)CPE
22.2CPE matchmatch criteria
cpe:2.3:a:linuxfoundation:iot-yocto:22.2:*:*:*:*:*:*:*
4.0CPE matchmatch criteria
cpe:2.3:a:linuxfoundation:yocto:4.0:*:*:*:*:*:*:*
12.0CPE matchmatch criteria
cpe:2.3:o:google:android:12.0:*:*:*:*:*:*:*
13.0CPE matchmatch criteria
cpe:2.3:o:google:android:13.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.7MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
0.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.10%
Probability of exploitation in next 30 days
EPSS Percentile
0.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0009 is in the 11th percentile among its peer group of 3,720 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/June-2023
Vendor Advisory