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Mallory
High

Out-of-bounds read in Android Framework Parcel.cpp appendFrom

IdentifiersCVE-2025-48596CWE-125· Out-of-bounds Read

CVE-2025-48596 is an Android Framework elevation-of-privilege vulnerability in Parcel.cpp. According to the provided content, the flaw is in appendFrom, where a missing bounds check can result in an out-of-bounds read. Successful exploitation could allow a local attacker to trigger memory access beyond the intended buffer boundaries. The issue does not require user interaction and can be exploited without additional execution privileges beyond those already available to the local attacker.

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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.

The vulnerability can lead to local escalation of privilege. Because the flaw is an out-of-bounds read in a core Android Framework component, successful exploitation may allow a local attacker to access unintended memory contents and leverage that condition to elevate privileges on the device. The provided content states that no user interaction is required.

Mitigation

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

If patching cannot be performed immediately, reduce exposure by limiting installation and execution of untrusted local applications, enforcing application allowlisting where possible, and accelerating deployment of the relevant Android security update across affected fleets. Because exploitation is local and requires no user interaction, mitigation is limited without the vendor patch; prompt patching is the primary mitigation.

Remediation

Patch, then assume compromise.

Apply the Android security updates that include the fix for CVE-2025-48596. The provided bulletin context indicates that Google’s December 2025 Android Security Bulletin addresses this issue, and devices updated to the 2025-12-05 security patch level are described as fully remediated for issues covered by that bulletin. OEM/vendor-provided 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

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType
GoogleAndroidoperating_system

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

ACTIVITY FEED

Recent activity

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

What this page doesn’t show

The version that knows your environment.

This page is what’s public. Mallory adds the parts that aren’t: which of your assets are affected, which adversaries are exploiting it right now, which detections to deploy, and what to do tonight.
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

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

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

Social activity4

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