Google Android up to 17 USSD/MMI Code MmiUtils.java input validation

CVSS Meta Temp Score
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CTI Interest Score
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7.8$5k-$25k0.40+

Summaryinfo

A vulnerability was found in Google Android 14/15/16/16-qpr2/17. It has been declared as very critical. This impacts an unknown function of the file MmiUtils.java of the component USSD/MMI Code Handler. Executing a manipulation can lead to input validation. This vulnerability appears as CVE-2026-49934. The attack requires local access. There is no available exploit. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability has been found in Google Android 14/15/16/16-qpr2/17 and classified as very critical. This vulnerability affects some unknown processing of the file MmiUtils.java of the component USSD/MMI Code Handler. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

In multiple functions of MmiUtils.java, there is a possible risk of USSD/MMI code execution due to improper input validation. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation.

The advisory is shared for download at source.android.com. This vulnerability was named CVE-2026-49934 since 06/02/2026. The exploitation appears to be easy. The attack needs to be approached locally. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 11/02/2026).

Applying a patch is able to eliminate this problem.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.2
VulDB Meta Temp Score: 7.8

VulDB Base Score: 8.2
VulDB Temp Score: 7.8
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined
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

06/02/2026 CVE reserved
11/02/2026 +153 days Advisory disclosed
11/02/2026 +0 days VulDB entry created
11/02/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: google.com

Advisory: source.android.com
Status: Confirmed

CNA: google_android
CVE: CVE-2026-49934 (🔒)

GCVE (CVE): GCVE-0-2026-49934
GCVE (VulDB): GCVE-100-429988
scip Labs: https://www.scip.ch/en/?labs.20150917

Entryinfo

Created: 11/02/2026 21:11
Changes: 11/02/2026 21:11 (58)
Complete: 🔍
Cache ID: 216::103

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