CVE-2024-39433

Local denial of service via unchecked DRM write

Published Sep 27, 2024 · Updated Sep 27, 2024

Out-of-bounds write in the Unisoc DRM service on affected Android 13 and 14 chipsets allows local users to crash the service. The DRM service performs a write without first checking the destination boundary, permitting memory corruption outside the intended buffer. Unisoc reports that System execution privileges are needed to reach the flaw, and the published consequence is limited to local denial of service.

CVSS severity4.4
Medium
EPSS probability0.08%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds write in the Unisoc DRM service on affected Android 13 and 14 chipsets allows local users to crash the service. The DRM service performs a write without first checking the destination boundary, permitting memory corruption outside the intended buffer. Unisoc reports that System execution privileges are needed to reach the flaw, and the published consequence is limited to local denial of service.

The record

CVE
CVE-2024-39433
Published
Sep 27, 2024
Updated
Sep 27, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787, T1499
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Sep 27, 2024CVE publishedPublication date reported by the CVE source.
  2. Sep 27, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.4NIST NVDCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
6.2UnisocCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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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