Out-of-bounds Read in Google Android

CVE-2021-39805

In l2cble_process_sig_cmd of l2c_ble.cc, there is a possible out of bounds read due to a missing bounds check. This could lead to remote information disclosure through Bluetooth with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12 Android-12LAndroid ID: A-212694559

Vulnerability class: Buffer Overflow

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.003 (17.9th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 18th percentile — 17.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2021-39805: held from 0.003 to 0.003.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

  • Google Android — versions 12.0, 12.1
  • Android — versions Android-12 Android-12L

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2021-39805?
CVE-2021-39805 is a medium-severity vulnerability in Google Android, classified under Out-of-bounds Read. CVSS score: 6.5/10. Published 2022-04-12.
How severe is CVE-2021-39805?
Medium severity. CVSS v3 base score is 6.5 out of 10.