How severe is CVE-2025-66848?

CVE-2025-66848 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-66848 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-66848?

CVE-2025-66848 primarily affects Jdcloud Ax1800 Firmware. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-66848?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2025-66848 have an EU (EUVD) identifier?

Yes. CVE-2025-66848 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-205835.

When was CVE-2025-66848 published?

CVE-2025-66848 was published on 2025-12-30 and last updated on 2026-07-05.

CVE-2025-66848

CVE-2025-66848 is a critical-severity vulnerability in Jdcloud Ax1800 Firmware with a CVSS 3.x base score of 9.8. 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-94.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (56th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-205835
Weakness: CWE-94
Affected product: Jdcloud Ax1800 Firmware
Published: 2025-12-30
Last modified: 2026-07-05

Description

JD Cloud NAS routers AX1800 (4.3.1.r4308 and earlier), AX3000 (4.3.1.r4318 and earlier), AX6600 (4.5.1.r4533 and earlier), BE6500 (4.4.1.r4308 and earlier), ER1 (4.5.1.r4518 and earlier), and ER2 (4.5.1.r4518 and earlier) contain an unauthorized remote command execution vulnerability.

Frequently asked questions

What is CVE-2025-66848?: JD Cloud NAS routers AX1800 (4.3.1.r4308 and earlier), AX3000 (4.3.1.r4318 and earlier), AX6600 (4.5.1.r4533 and earlier), BE6500 (4.4.1.r4308 and earlier), ER1 (4.5.1.r4518 and earlier), and ER2 (4.5.1.r4518 and earlier) contain an unauthorized remote command execution vulnerability.
How severe is CVE-2025-66848?: CVE-2025-66848 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-66848 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-66848?: CVE-2025-66848 primarily affects Jdcloud Ax1800 Firmware. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-66848?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2025-66848 have an EU (EUVD) identifier?: Yes. CVE-2025-66848 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-205835.
When was CVE-2025-66848 published?: CVE-2025-66848 was published on 2025-12-30 and last updated on 2026-07-05.

References

EU advisories (EUVD)

http://jd.com

Affected products (6)

cpe:2.3:o:jdcloud:ax1800_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:jdcloud:ax3000_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:jdcloud:ax6600_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:jdcloud:be6500_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:jdcloud:er1_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:jdcloud:er2_firmware:*:*:*:*:*:*:*:*

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