No exploitation reported

CVE-2025-66848

No exploitation reported by the sources we read.

Published2025-12-30
WeaknessCWE-94

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC

2025-12-3017:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2025-66848?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2025-66848?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Jdcloud ax1800 firmwareversion to verify

Branch	Affected	Fixed in	Source
4.3	≤ 4.3.1.r4308	no fix published	NVD

Jdcloud ax3000 firmwareversion to verify

Branch	Affected	Fixed in	Source
4.3	≤ 4.3.1.r4318	no fix published	NVD

Jdcloud ax6600 firmwareversion to verify

Branch	Affected	Fixed in	Source
4.5	≤ 4.5.1.r4533	no fix published	NVD

3 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVE recordread 2026-10-23
CISA-ADPSSVC decisionnone2026-01-02
OpenCVESSVC decisionnone—
CISA-ADPCVSS 3.19.82026-01-02
CISA-ADPweakness (CWE)CWE-942026-01-02
FIRST EPSSEPSS score1.1 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: 2025-12-30
Last Modified: 2026-07-05
NVD status: Modified

Frequently asked questions

What is CVE-2025-66848?

Is CVE-2025-66848 actively exploited?

Active exploitation of CVE-2025-66848 has not been confirmed. Its EPSS score was 1.1% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2025-66848?

CVE-2025-66848 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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