What is CVE-2020-27036?

CVE-2020-27036 is a medium-severity vulnerability in Google Android, classified under Out-of-bounds Read. CVSS score: 6.7/10. Published 2020-12-15.

How severe is CVE-2020-27036?

Medium severity. CVSS v3 base score is 6.7 out of 10.

Out-of-bounds Read in Google Android

CVE-2020-27036

In phNxpNciHal_send_ext_cmd of phNxpNciHal_ext.cc, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege in the NFC server with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11Android ID: A-153731369

Vulnerability class: Buffer Overflow

Published 2020-12-15 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.002 (3.6th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 4th percentile — 3.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.001 · newest: 0.002 · change: +0.000

Affected products

Google Android — versions 11.0
Android — versions Android-11

Weakness classification (CWE)

References

source.android.com/security/bulletin/pixel/2020-12-01 (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2020-27036?: CVE-2020-27036 is a medium-severity vulnerability in Google Android, classified under Out-of-bounds Read. CVSS score: 6.7/10. Published 2020-12-15.
How severe is CVE-2020-27036?: Medium severity. CVSS v3 base score is 6.7 out of 10.