What is CVE-2021-0640?

CVE-2021-0640 is a high-severity vulnerability in Google Android, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2021-08-17.

How severe is CVE-2021-0640?

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

Is CVE-2021-0640 known to be exploited?

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

Buffer overflow in Google Android

CVE-2021-0640

In noteAtomLogged of StatsdStats.cpp, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-10 Android-11 Android-9Android ID: A-187957589

Vulnerability class: Buffer Overflow

EPSS: 0.002 (12.3th 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 9.0, 10.0, 11.0
N/a Android — versions Android-10 Android-11 Android-9

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

Public proof-of-concept exploits

References

security@android.com (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-0640?: CVE-2021-0640 is a high-severity vulnerability in Google Android, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2021-08-17.
How severe is CVE-2021-0640?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2021-0640 known to be exploited?: 13 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.