---
id: "CVE-2023-20963"
kind: "vulnerability"
aliases: ["CVE-2023-20963"]
title: "google android: In WorkSource, there is a possible parcel mismatch"
severity: "high"
cvss: 7.8
epss: null
exploited: true
status: "open"
category: "infrastructure"
products: [{"name": "Android Framework", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "google android", "fixed": [], "affected": "= 11.0", "ecosystem": "vendor"}, {"name": "google android", "fixed": [], "affected": "= 12.0", "ecosystem": "vendor"}, {"name": "google android", "fixed": [], "affected": "= 12.1", "ecosystem": "vendor"}, {"name": "google android", "fixed": [], "affected": "= 13.0", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["android", "exploited", "infrastructure", "mobile-fleet", "self-hosted"]
not_affected_if: ["unknown"]
published_at: "2023-03-24T20:15:10+00:00"
first_seen_at: "2026-10-23T19:11:52+00:00"
updated_at: "2026-10-23T22:29:04+00:00"
sources: [{"source": "kev", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2023-20963", "first_seen_at": "2026-10-23T19:11:52+00:00"}, {"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-20963", "first_seen_at": "2026-10-23T22:29:04+00:00"}]
---

# google android: In WorkSource, there is a possible parcel mismatch

Android Framework contains a flaw that lets an app gain higher privileges after it is updated to a higher Target SDK, with no extra execution privileges needed. An attacker who gets a malicious app onto a device can escalate privileges beyond what the app is granted.

_Summary, check and fix written by a model from the sources; labelled as such._

## Affected

- vendor:Android Framework affected ? fixed ?
- vendor:google android affected = 11.0 fixed ?
- vendor:google android affected = 12.0 fixed ?
- vendor:google android affected = 12.1 fixed ?
- vendor:google android affected = 13.0 fixed ?

## How to check

Check the device's Android security patch level under Settings > About phone; compare it with the Android security bulletin for the month listed in the sources. unknown for a fleet-wide command.

## Fix

Apply the Android security update that includes the vendor fix for CVE-2023-20963, per the vendor instructions named in the CISA entry. Keep devices on supported OS builds.

## Timeline

- 2026-10-23T19:11:52+00:00 kev https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2023-20963
- 2026-10-23T22:29:04+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2023-20963

## From the sources

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

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_