CVE-2023-30024
MEDIUMmagicJack A921 Firmware - Unauthenticated Arbitrary Code Execution via Hidden NAND Flash Partition
Title source: llmDescription
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.
References (4)
Core 4
Core References
Third Party Advisory
https://pastebin.com/raw/irWcawp8
Exploit, Technical Description, Third Party Advisory
https://samuraisecurity.co.uk/red-teaming-0x01-click-rce-via-voip-usb/
Product
https://www.magicjack.com/
Scores
CVSS v3
6.6
EPSS
0.0047
EPSS Percentile
37.2%
Attack Vector
PHYSICAL
CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
total
Details
CWE
CWE-269
CWE-863
Status
published
Products (1)
magicjack/a921_firmware
1.4
Published
Apr 28, 2023
Tracked Since
Feb 18, 2026