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CVE-2023-20963

In WorkSource, there is a possible parcel mismatch. This could lead to local escalation of...

7.8 HighIn KEVPublic exploitFix available

In WorkSource, there is a possible parcel mismatch. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-12 Android-12L Android-13Android ID: A-220302519

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

1.47%Up 1.4 points since Mar 25, 2023
90%50%10%1%

What each source reports

NVD Score used 7.8

In WorkSource, there is a possible parcel mismatch. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-12 Android-12L Android-13Android ID: A-220302519

Record
CVE-2023-20963
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-295
Updated
2026-11-02
CVE List 7.8

In WorkSource, there is a possible parcel mismatch. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-12 Android-12L Android-13Android ID: A-220302519

Record
CVE-2023-20963
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-295
Updated
2026-11-02
EUVDEUVD-2023-25131 7.8

In WorkSource, there is a possible parcel mismatch. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-12 Android-12L Android-13Android ID: A-220302519

Record
EUVD-2023-25131
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
GitHub AdvisoriesGHSA-xm9f-fph8-8369 7.8

In WorkSource, there is a possible parcel mismatch. This could lead to local escalation of...

In WorkSource, there is a possible parcel mismatch. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-12 Android-12L Android-13Android ID: A-220302519

Record
GHSA-xm9f-fph8-8369
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-295
Updated
2026-11-02
CISA KEV No score

Android Framework Privilege Escalation Vulnerability

Android Framework contains an unspecified vulnerability that allows for privilege escalation after updating an app to a higher Target SDK with no additional execution privileges needed.

Record
CVE-2023-20963
Weakness
CWE-295
Updated
2026-11-02
OSVASB-A-220302519 No score

In WorkSource, there is a possible parcel mismatch. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

Record
ASB-A-220302519
Updated
2026-11-05

Affected products

Affected packages

Affected packages
PackageAffectedFixed
platform/frameworks/base
Android
13-next:0 up to 13-next:2023-03-01, plus listed versions
13-next
13-next:2023-03-01
platform/frameworks/base
Android
11:0 up to 11:2023-03-01, plus listed versions
11
11:2023-03-01
platform/frameworks/base
Android
12:0 up to 12:2023-03-01, plus listed versions
12
12:2023-03-01
platform/frameworks/base
Android
12L:0 up to 12L:2023-03-01, plus listed versions
12L
12L:2023-03-01
platform/frameworks/base
Android
13:0 up to 13:2023-03-01, plus listed versions
13
13:2023-03-01

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
SourceLinkDate
PoC in GitHubpwnipc/BadParcel2023-06-12
PoC in GitHubTrinadh465/frameworks_base_AOSP10_r33_CVE-2023-209632023-10-20

History

History
RecordedChangedSources
exploitation, exploits
first indexedCVE List, EUVD, GitHub Advisories, CISA KEV, NVD, OSV, PoC in GitHub

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

In short

CVE-2023-20963 is a high vulnerability (CVSS 7.8) in Google Android, published March 1, 2023. CISA lists it as known to be exploited, since April 13, 2023. EUVD reports exploitation since April 13, 2023. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 1.47%, the 73rd percentile. Fixed in platform/frameworks/base 13-next:2023-03-01.

References

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