CVE-2021-23246Network attack vector

Foreground application disclosure via permission promotion

Published Mar 11, 2022 · Updated Aug 3, 2024

Information disclosure in OPPO ColorOS 11 on ACE2 allows remote attackers to obtain the foreground package name through permission promotion. OPPO has not published the affected component or the incorrect permission check that exposes the foreground application identifier. No privileges or user interaction are required; disclosure is limited to identifying the application currently in the foreground.

CVSS severity7.5
High
EPSS probability0.97%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in OPPO ColorOS 11 on ACE2 allows remote attackers to obtain the foreground package name through permission promotion. OPPO has not published the affected component or the incorrect permission check that exposes the foreground application identifier. No privileges or user interaction are required; disclosure is limited to identifying the application currently in the foreground.

The record

CVE
CVE-2021-23246
Published
Mar 11, 2022
Updated
Aug 3, 2024
Vendor
OPPO
Product
ColorOS
Classifications
T1418
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 11, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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=ColorOS 11

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

OPPO · ColorOSversion=ColorOS 11

Published CVSS scores

5.0NVDAV:N/AC:L/Au:N/C:P/I:N/A:N
7.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

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

Weakness, pattern, technique

T1418Software Discovery

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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