Exynos 9820 FirmwareOperating system · Samsung

CVE-2024-46919

MEDIUM · 5.3 CVSS v3.1 Published 2025-01-13
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
62/100
Remediation priority · Elevated
Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
An issue was discovered in Samsung Mobile Processor Exynos 9820, 9825, 980, 990, 850, 1080, 2100, and 1280. Lack of a length check leads to a stack out-of-bounds write at loadOutputBuffers.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

A missing length check in the loadOutputBuffers function of Samsung Exynos mobile processors (9820, 9825, 980, 990, 850, 1080, 2100, and 1280) allows a stack out-of-bounds write vulnerability. This is a memory corruption flaw at the firmware level that could lead to code execution or denial of service.

MitigationThis hardware/firmware vulnerability requires a security patch from Samsung and downstream device manufacturers. End users should apply firmware/security updates from their device vendors as they become available.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Exynos 9820 FirmwareOperating system
Affected:all versions
Exynos 9825 FirmwareOperating system
Affected:all versions
Exynos 980 FirmwareOperating system
Affected:all versions
Exynos 990 FirmwareOperating system
Affected:all versions
Exynos 850 FirmwareOperating system
Affected:all versions
Exynos 2100 FirmwareOperating system
Affected:all versions
Exynos 1280 FirmwareOperating system
Affected:all versions
Exynos 1080 FirmwareOperating system
Affected:all versions

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify the Exynos processor model
    Check the device specifications or system information to determine if the device uses one of the following Exynos chips: 9820, 9825, 980, 990, 850, 1080, 2100, or 1280. On Android devices, this can often be found in Settings > About Phone > Chipset or via commands like 'cat /proc/cpuinfo' or 'getprop ro.hardware'
    Affected if The device contains any of the listed Exynos processor models (9820, 9825, 980, 990, 850, 1080, 2100, or 1280)
  2. Check the baseband or firmware version
    Retrieve the modem/baseband firmware version. On Android, use 'AT+CGMR' via a terminal app with modem diagnostics, check Settings > About Phone > Baseband version, or use 'getprop gsm.version.baseband'
    Affected if The firmware version is present and corresponds to an unpatched release
  3. Verify the loadOutputBuffers function context
    This is a low-level firmware vulnerability in the baseband/processor firmware. There is no user-accessible config to check. The presence of the vulnerability can only be confirmed by checking if Samsung or the device manufacturer has released a security patch for this CVE.
    Affected if The device vendor security bulletin does not list a fix for CVE-2024-46919
  4. Check vendor security patch level
    On Android devices, check Settings > About Phone > Security Patch Level or use 'getprop ro.build.version.security_patch'. Compare this date against the date when the fix for CVE-2024-46919 was released in the Android Security Bulletin.
    Affected if The security patch level is earlier than the month when CVE-2024-46919 was patched

If the device uses any of the affected Exynos processors (9820, 9825, 980, 990, 850, 1080, 2100, 1280) and the vendor has not issued a firmware/security patch for CVE-2024-46919, the device is vulnerable to stack out-of-bounds write via the loadOutputBuffers function.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

This hardware/firmware vulnerability requires a security patch from Samsung and downstream device manufacturers. End users should apply firmware/security updates from their device vendors as they become available.

Fix this in Exynos 9820 Firmware Scoped from the published advisory
  • Consultation8.0 h
  • Implementation4.0 h
  • Testing16.0 h
  • Review / QA8.0 h
36.0 hours of engineering $6,160
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Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2024-46919 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2024-46919 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data