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CVE-2021-0536

In dropFile of WiFiInstaller, there is a way to delete files accessible to CertInstaller due to a...

7.8 HighFix available

In dropFile of WiFiInstaller, there is a way to delete files accessible to CertInstaller due to a confused deputy. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11Android ID: A-176756691

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

0.12%Down 0.3 points since Jun 22, 2021
90%50%10%1%

What each source reports

NVD Score used 7.8

In dropFile of WiFiInstaller, there is a way to delete files accessible to CertInstaller due to a confused deputy. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11Android ID: A-176756691

Record
CVE-2021-0536
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0
4.6 MediumAV:L/AC:L/Au:N/C:P/I:P/A:P
Weakness
CWE-610
Updated
2026-11-02
CVE List No score

In dropFile of WiFiInstaller, there is a way to delete files accessible to CertInstaller due to a confused deputy. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11Android ID: A-176756691

Record
CVE-2021-0536
Updated
2026-11-02
EUVDEUVD-2021-3155 No score

In dropFile of WiFiInstaller, there is a way to delete files accessible to CertInstaller due to a confused deputy. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11Android ID: A-176756691

Record
EUVD-2021-3155
Updated
2026-11-03
GitHub AdvisoriesGHSA-2762-7h78-r5qq No score

In dropFile of WiFiInstaller, there is a way to delete files accessible to CertInstaller due to a...

In dropFile of WiFiInstaller, there is a way to delete files accessible to CertInstaller due to a confused deputy. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11Android ID: A-176756691

Record
GHSA-2762-7h78-r5qq
Weakness
CWE-610
Updated
2026-11-02
OSVPUB-A-176756691 No score

In dropFile of WiFiInstaller, there is a way to delete files accessible to CertInstaller due to a confused deputy. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

Record
PUB-A-176756691
Updated
2026-11-05

Affected products

Affected packages

Affected packages
PackageAffectedFixed
platform/packages/apps/CertInstaller
Android
11:0 up to 11:2021-06-01, plus listed versions
11
11:2021-06-01

History

History
RecordedChangedSources
factsOSV
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-0536 is a high vulnerability (CVSS 7.8) in Google Android, published June 1, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.12%, the 1st percentile. Fixed in platform/packages/apps/CertInstaller 11:2021-06-01.

References

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