Google Android 11.0/12.0/13.0 nci_hmsgs.cc nci_snd_set_routing_cmd out-of-bounds write

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.4$5k-$25k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Google Android 11.0/12.0/13.0. This issue affects the function nci_snd_set_routing_cmd of the file nci_hmsgs.cc. Performing a manipulation results in out-of-bounds write. This vulnerability is reported as CVE-2023-21085. The attack is possible to be carried out remotely. No exploit exists. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability, which was classified as critical, was found in Google Android 11.0/12.0/13.0 (Smartphone Operating System). This affects the function nci_snd_set_routing_cmd of the file nci_hmsgs.cc. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. CWE is classifying the issue as CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

In nci_snd_set_routing_cmd of nci_hmsgs.cc, there is a possible out of bounds write due to a missing bounds check. This could lead to remote (proximal/adjacent) code execution 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-264879662

The weakness was disclosed 04/20/2023 as A-264879662. The advisory is shared at source.android.com. This vulnerability is uniquely identified as CVE-2023-21085 since 11/03/2022. Technical details are known, but no exploit is available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 09/10/2025). It is expected to see the exploit prices for this product increasing in the near future.

Applying a patch is able to eliminate this problem.

The vulnerability is also documented in the databases at EUVD (EUVD-2023-25253) and CERT Bund (WID-SEC-2023-0841). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

  • Samsung Exynos
  • Samsung Android

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.4

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

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/03/2022 🔍
04/20/2023 +167 days 🔍
04/20/2023 +0 days 🔍
09/10/2025 +874 days 🔍

Sourcesinfo

Vendor: google.com

Advisory: A-264879662
Status: Confirmed

CVE: CVE-2023-21085 (🔍)
GCVE (CVE): GCVE-0-2023-21085
GCVE (VulDB): GCVE-100-226857
EUVD: 🔍
CERT Bund: WID-SEC-2023-0841 - Samsung Android und Samsung Exynos: Mehrere Schwachstellen

scip Labs: https://www.scip.ch/en/?labs.20150917

Entryinfo

Created: 04/20/2023 07:28
Updated: 09/10/2025 15:18
Changes: 04/20/2023 07:28 (43), 05/14/2023 09:32 (11), 09/04/2025 01:33 (22), 09/10/2025 15:18 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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