What is CVE-2023-20940?

CVE-2023-20940 is a high-severity vulnerability in Google Android, classified under Improper Verification of Cryptographic Signature. CVSS score: 7.8/10. Published 2023-02-28.

How severe is CVE-2023-20940?

High severity. CVSS v3 base score is 7.8 out of 10.

Is CVE-2023-20940 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Google Android

CVE-2023-20940

In the Android operating system, there is a possible way to replace a boot partition due to improperly used crypto. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-13Android ID: A-256237041

EPSS: 0.001 (0.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Google Android — versions 13.0
N/a Android — versions Android-13

Weakness classification (CWE)

CWE-347 — Improper Verification of Cryptographic Signature

Public proof-of-concept exploits

ARPSyndicate/cvemon

References

security@android.com (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2023-20940?: CVE-2023-20940 is a high-severity vulnerability in Google Android, classified under Improper Verification of Cryptographic Signature. CVSS score: 7.8/10. Published 2023-02-28.
How severe is CVE-2023-20940?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2023-20940 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.