CVE-2023-30024
Insecure Permissions vulnerability found in MagicJack A921 USB Phone Jack Rev 3.0 v.1.4 allows a...
The MagicJack device, a VoIP solution for internet phone calls, contains a hidden NAND flash memory partition allowing unauthorized read/write access. Attackers can exploit this by replacing the original software with a malicious version, leading to ransomware deployment on the host computer. Affected devices have firmware versions prior to magicJack A921 USB Phone Jack Rev 3.0 V1.4.
Attack profile
How easy it is to exploit
- Attack vector
- Physical
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
The MagicJack device, a VoIP solution for internet phone calls, contains a hidden NAND flash memory partition allowing unauthorized read/write access. Attackers can exploit this by replacing the original software with a malicious version, leading to ransomware deployment on the host computer. Affected devices have firmware versions prior to magicJack A921 USB Phone Jack Rev 3.0 V1.4.
- Record
CVE-2023-30024- CVSS 3.1
- 6.6 Medium
CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-269, CWE-863
- Updated
- 2026-11-02
CVE List No score
The MagicJack device, a VoIP solution for internet phone calls, contains a hidden NAND flash memory partition allowing unauthorized read/write access. Attackers can exploit this by replacing the original software with a malicious version, leading to ransomware deployment on the host computer. Affected devices have firmware versions prior to magicJack A921 USB Phone Jack Rev 3.0 V1.4.
- Record
CVE-2023-30024- Weakness
- CWE-863
- Updated
- 2026-11-02
EUVDEUVD-2023-34457
The MagicJack device, a VoIP solution for internet phone calls, contains a hidden NAND flash memory partition allowing unauthorized read/write access. Attackers can exploit this by replacing the original software with a malicious version, leading to ransomware deployment on the host computer. Affected devices have firmware versions prior to magicJack A921 USB Phone Jack Rev 3.0 V1.4.
- Record
EUVD-2023-34457- CVSS
- 0.0 None
CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-f842-4gqm-2cpg
Insecure Permissions vulnerability found in MagicJack A921 USB Phone Jack Rev 3.0 v.1.4 allows a...
Insecure Permissions vulnerability found in MagicJack A921 USB Phone Jack Rev 3.0 v.1.4 allows a physically proximate attacker to escalate privileges and gain access to sensitive information via the NAND flash memory.
- Record
GHSA-f842-4gqm-2cpg- CVSS 3.1
- 6.6 Medium
CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-269, CWE-863
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-30024 is a medium vulnerability (CVSS 6.6) in Magicjack A921 Firmware, published April 28, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.47%, the 41st percentile. No source names a fixed version.