CVE-2020-0159

Local information disclosure via incorrect bounds check

Published Jun 11, 2020 · Updated Aug 4, 2024

Out-of-bounds read in Android 10 allows local users to disclose information through crafted NFC MIFARE Classic write data. The rw_mfc_writeBlock function in rw_mfc.cc applies an incorrect bounds check before reading a block, allowing data beyond the intended buffer to be read. Exploitation requires System execution privileges and user interaction, and the documented consequence is local information disclosure without integrity or availability impact.

CVSS severity5.5
Medium
EPSS probability0.35%
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 read in Android 10 allows local users to disclose information through crafted NFC MIFARE Classic write data. The rw_mfc_writeBlock function in rw_mfc.cc applies an incorrect bounds check before reading a block, allowing data beyond the intended buffer to be read. Exploitation requires System execution privileges and user interaction, and the documented consequence is local information disclosure without integrity or availability impact.

The record

CVE
CVE-2020-0159
Published
Jun 11, 2020
Updated
Aug 4, 2024
Vendor
Google Cloud
Product
Android
Classifications
CWE-125
Attack vector
local
Privileges
admin

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?

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  1. Affected versionversion=Android-10

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Google Cloud · Androidversion=Android-10

Published CVSS scores

3.5NVDAV:N/AC:M/Au:S/C:P/I:N/A:N
5.5NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-125Out-of-bounds Read

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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