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Medium

Permanent DoS in Android NotificationManagerService updateNotificationChannelGroupFromPrivilegedListener

IdentifiersCVE-2025-48576CWE-400· Uncontrolled Resource Consumption

CVE-2025-48576 is an Android Framework vulnerability in NotificationManagerService.java, specifically in the updateNotificationChannelGroupFromPrivilegedListener method. According to the provided content, the flaw can cause permanent denial of service due to resource exhaustion. The issue is local, requires no additional execution privileges, and does not require user interaction for exploitation. Based on the available information, the vulnerable condition allows a local actor to trigger uncontrolled or excessive resource consumption in the notification channel group update path, resulting in a persistent availability failure.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation can cause a permanent local denial of service on the affected Android device. The provided content indicates the root effect is resource exhaustion, so the practical impact is loss of availability of the affected service or device functionality, potentially requiring recovery actions to restore normal operation. No privilege escalation or user interaction is required according to the supplied description.

Mitigation

If you can’t patch tonight, do this now.

Until patches are deployed, mitigation information specific to this vulnerability is not provided in the supplied content. Practical interim measures are limited because exploitation is local and requires no user interaction once code execution in an app context is available. Risk can be reduced by restricting installation of untrusted applications, enforcing application allow-listing in managed environments, and accelerating deployment of the December 2025 Android security update and any corresponding OEM patches.

Remediation

Patch, then assume compromise.

Apply the Android security updates that include the fix for CVE-2025-48576. The provided content places this issue in Google’s December 2025 Android Security Bulletin and states that devices updated to the 2025-12-05 patch level are fully remediated for disclosed issues in that bulletin. OEM and vendor firmware updates should also be applied where applicable.
PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

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VendorProductType
GoogleAndroidoperating_system

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ACTIVITY FEED

Recent activity

4 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

4 SOURCESView more in app
What this page doesn’t show

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Exposure mapping

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Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

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Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity3

Community discussion across Reddit, Mastodon, and other social sources.

EXTERNAL REFERENCES
MITRE CVE
cve.org · CVE-2025-48576
NVD
nvd.nist.gov/vuln/detail/CVE-2025-48576
MITRE CWE · CWE-400
Uncontrolled Resource Consumption
Patch
android.googlesource.com/platform/frameworks/base/+/b812baa1463c9f9e81efa617c9d08ed7a63488b4
Vendor Advisory
source.android.com/security/bulletin/2025-12-01