CVE-2025-48464Public exploit

Sync data disclosure via implicit URI permission grant

Published Oct 8, 2025 · Updated Oct 8, 2025

Information disclosure in DuckDuckGo Browser 5.246.0 and earlier on Android 13 and earlier allows local users to read Sync account data. The exported ProxyActivity forwards an attacker-controlled intent, and Android 13 or earlier implicitly grants its content URI read access when the intent carries text. Exploitation requires a malicious app on the device and user interaction with a crafted page; the app can copy the Sync recovery PDF containing credentials and Email Protection details.

CVSS severity4.7
Medium
EPSS probability0.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in DuckDuckGo Browser 5.246.0 and earlier on Android 13 and earlier allows local users to read Sync account data. The exported ProxyActivity forwards an attacker-controlled intent, and Android 13 or earlier implicitly grants its content URI read access when the intent carries text. Exploitation requires a malicious app on the device and user interaction with a crafted page; the app can copy the Sync recovery PDF containing credentials and Email Protection details.

The record

CVE
CVE-2025-48464
Published
Oct 8, 2025
Updated
Oct 8, 2025
Vendor
DuckDuckGo
Product
DuckDuckGo Browser
Classifications
CWE-200, T1409
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 8, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 8, 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=5.246.0 and below

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

DuckDuckGo · DuckDuckGo Browserversion=5.246.0 and below

Published CVSS scores

4.7CSACVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:N/A: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)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1409Access Stored Application Data

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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