How severe is CVE-2023-30024?

CVE-2023-30024 has a CVSS 3.x base score of 6.6, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-30024 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-30024?

CVE-2023-30024 affects Magicjack A921 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-30024?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-30024 published?

CVE-2023-30024 was published on 2023-04-28 and last updated on 2026-06-17.

CVE-2023-30024

CVE-2023-30024 is a medium-severity vulnerability in Magicjack A921 Firmware with a CVSS 3.x base score of 6.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-269.

Key facts

Severity: Medium (CVSS 3.x base score 6.6)
EPSS exploit prediction: 0% (38th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-269
Affected product: Magicjack A921 Firmware
Published: 2023-04-28
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2023-30024?: 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.
How severe is CVE-2023-30024?: CVE-2023-30024 has a CVSS 3.x base score of 6.6, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-30024 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-30024?: CVE-2023-30024 affects Magicjack A921 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-30024?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-30024 published?: CVE-2023-30024 was published on 2023-04-28 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:magicjack:a921_firmware:1.4:*:*:*:*:*:*:*

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