CVE-2023-30024Public exploit

Host code execution via writable NAND partition

Published Apr 28, 2023 · Updated Jan 31, 2025

Incorrect authorization in magicJack A921 firmware before 1.4 allows physically proximate attackers to execute code on an attached host. A hidden NAND partition remains writable despite the software volume appearing read-only, permitting the bundled application to be replaced with a lookalike. Physical access to the USB device and subsequent execution of the substituted application are required; the demonstrated result is arbitrary host command execution.

CVSS severity6.6
Medium
EPSS probability0.47%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect authorization in magicJack A921 firmware before 1.4 allows physically proximate attackers to execute code on an attached host. A hidden NAND partition remains writable despite the software volume appearing read-only, permitting the bundled application to be replaced with a lookalike. Physical access to the USB device and subsequent execution of the substituted application are required; the demonstrated result is arbitrary host command execution.

The record

CVE
CVE-2023-30024
Published
Apr 28, 2023
Updated
Jan 31, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-269, CWE-863, T1204.002
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 28, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 31, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorphysical
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.6NIST NVDCVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:H/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorphysical
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-269Improper Privilege Management
CWE-863Incorrect Authorization
T1204.002User Execution: Malicious File

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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