Google Android 11.0/12.0/13.0 WorkSource certificate validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.2$5k-$25k0.00

Summaryinfo

A vulnerability classified as critical has been found in Google Android 11.0/12.0/13.0. This issue affects the function WorkSource. Performing a manipulation results in an unknown weakness. This vulnerability is reported as CVE-2023-20963. The attack is possible to be carried out remotely. Moreover, an exploit is present. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability, which was classified as critical, was found in Google Android 11.0/12.0/13.0 (Smartphone Operating System). CWE is classifying the issue as CWE-295. The product does not validate, or incorrectly validates, a certificate. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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

The weakness was disclosed 03/25/2023 as A-220302519. It is possible to read the advisory at source.android.com. This vulnerability is uniquely identified as CVE-2023-20963 since 11/03/2022. Technical details and a exploit are known. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 09/06/2025). It is expected to see the exploit prices for this product increasing in the near future.The attack technique deployed by this issue is T1587.003 according to MITRE ATT&CK.

It is declared as attacked. The CISA Known Exploited Vulnerabilities Catalog lists this issue since 04/13/2023 with a due date of 05/04/2023:

Apply updates per vendor instructions.

Applying a patch is able to eliminate this problem.

The vulnerability is also documented in the databases at Zero-Day.cz (755) and EUVD (EUVD-2023-25131). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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Version

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.2

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CNA Base Score: 7.8
CNA Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Certificate validation
CWE: CWE-295 / CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Attacked

EPSS Score: 🔍
EPSS Percentile: 🔍

KEV Added: 🔍
KEV Due: 🔍
KEV Remediation: 🔍
KEV Ransomware: 🔍
KEV Notice: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Zero-Day.cz: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/03/2022 🔍
03/25/2023 +142 days 🔍
03/25/2023 +0 days 🔍
09/06/2025 +896 days 🔍

Sourcesinfo

Vendor: google.com

Advisory: A-220302519
Status: Confirmed

CVE: CVE-2023-20963 (🔍)
GCVE (CVE): GCVE-0-2023-20963
GCVE (VulDB): GCVE-100-223887
EUVD: 🔍
scip Labs: https://www.scip.ch/en/?labs.20150917

Entryinfo

Created: 03/25/2023 08:07
Updated: 09/06/2025 21:13
Changes: 03/25/2023 08:07 (40), 04/14/2023 14:19 (12), 04/28/2024 13:30 (26), 06/14/2024 21:33 (2), 09/28/2024 01:52 (2), 01/29/2025 02:04 (11), 09/06/2025 21:13 (1)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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