CVE-2025-12080Public exploit

Unauthorized message sending via unconfirmed ACTION_SENDTO intents

Published Oct 27, 2025 · Updated Oct 27, 2025

Improper intent handling in Google Messages on Wear OS before 30-04-2025 allows attackers to send messages via ACTION_SENDTO intents. Google Messages accepts sms:, smsto:, mms:, and mmsto: URIs from other apps and sends the supplied recipient and body without confirmation. An installed app needs no messaging permission or further user interaction, and the consequence is unauthorized SMS, MMS, or RCS transmission.

CVSS severity6.9
Medium
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper intent handling in Google Messages on Wear OS before 30-04-2025 allows attackers to send messages via ACTION_SENDTO intents. Google Messages accepts sms:, smsto:, mms:, and mmsto: URIs from other apps and sends the supplied recipient and body without confirmation. An installed app needs no messaging permission or further user interaction, and the consequence is unauthorized SMS, MMS, or RCS transmission.

The record

CVE
CVE-2025-12080
Published
Oct 27, 2025
Updated
Oct 27, 2025
Vendor
Google Cloud
Product
Wear OS
Classifications
CWE-345
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 27, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 27, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <30-04-2025

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Google Cloud · Wear OSversion=0 <30-04-2025

Published CVSS scores

6.9Google Inc.CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:L/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-345Insufficient Verification of Data Authenticity

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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