CVE-2020-0216

Local privilege escalation via unchecked MIFARE response length

Published Jun 11, 2020 · Updated Aug 4, 2024

Out-of-bounds write in Android 10 NFC code allows local users to elevate privileges through a crafted MIFARE response with user interaction. phNciNfc_RecvMfResp subtracts fixed header sizes from an unchecked response length, allowing the derived payload length to underflow before a write. Exploitation requires NFC interaction with the affected device and can execute code with the NFC process's elevated privileges.

CVSS severity7.8
High
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds write in Android 10 NFC code allows local users to elevate privileges through a crafted MIFARE response with user interaction. phNciNfc_RecvMfResp subtracts fixed header sizes from an unchecked response length, allowing the derived payload length to underflow before a write. Exploitation requires NFC interaction with the affected device and can execute code with the NFC process's elevated privileges.

The record

CVE
CVE-2020-0216
Published
Jun 11, 2020
Updated
Aug 4, 2024
Vendor
Google Cloud
Product
Android
Classifications
CWE-787, CWE-190, T1068
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 11, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=Android-10

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Google Cloud · Androidversion=Android-10

Published CVSS scores

7.8NIST National Vulnerability DatabaseCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
4.4NIST National Vulnerability DatabaseAV:L/AC:M/Au:N/C:P/I:P/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
CWE-190Integer Overflow or Wraparound
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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