CVE-2026-2561: A vulnerability was found in JingDong JD Cloud Box AX6600 up to 4.5.1.r4533

Q: How do I fix CVE-2026-2561?

ax6600 firmware: upgrade to newer than 4.5.1.r4533. Exact commands for each OS are on this page.

Q: Is CVE-2026-2561 being exploited?

CVE-2026-2561 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-2561 affect?

CVE-2026-2561 affects ax6600 firmware. Severity is medium (CVSS 6.3). A vulnerability was found in JingDong JD Cloud Box AX6600 up to 4.5.1.r4533. This affects the function web_get_ddns_uptime of the file /jdcapi of the component jdcweb_rpc. Performing a manipulation results in Remote Privilege Escalation. Th

Q: How urgent is CVE-2026-2561?

Priority 30/100. No elevated risk signals yet.

Routine

MEDIUM 6.3UPGRADE

CVE-2026-2561 is a medium-severity flaw (CVSS 6.3) affecting ax6600 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability was found in JingDong JD Cloud Box AX6600 up to 4.5.1.r4533. This affects the function web_get_ddns_uptime of the file /jdcapi of the component jdcweb_rpc. Performing a manipulation results in Remote Privilege Escalation. The attack is possible to be carried out remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.4% (top 69%)
CISA exploited list	No
Weakness	CWE-266, CWE-269
Published	2026-02-16
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: jdcloud

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-02-16 15:18 UTCPublished CVE record published
2026-06-17 10:31 UTCUpdated Record last modified

jdcloud ax6600 firmware UPGRADE

Affected: <= 4.5.1.r4533

Fixed in: newer than 4.5.1.r4533

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-2561?

ax6600 firmware: upgrade to newer than 4.5.1.r4533. Exact commands for each OS are on this page.

Is CVE-2026-2561 being exploited?

CVE-2026-2561 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-2561 affect?

CVE-2026-2561 affects ax6600 firmware. Severity is medium (CVSS 6.3). A vulnerability was found in JingDong JD Cloud Box AX6600 up to 4.5.1.r4533. This affects the function web_get_ddns_uptime of the file /jdcapi of the component jdcweb_rpc. Performing a manipulation results in Remote Privilege Escalation. Th

How urgent is CVE-2026-2561?

Priority 30/100. No elevated risk signals yet.

Related CVEs

CVE-2025-66848 CRITICAL 9.8 UPGRADE UPGRADE JD Cloud NAS routers AX1800 (4.3.1.r4308 and earlier), AX3000 (4.3.1.r4318 and earlier), AX6600 (4.5.1.r4533 a
CVE-2026-2563 MEDIUM 6.3 UPGRADE A vulnerability was identified in JingDong JD Cloud Box AX6600 up to 4.5.1.r4533
CVE-2026-2562 MEDIUM 6.3 UPGRADE A vulnerability was determined in JingDong JD Cloud Box AX6600 up to 4.5.1.r4533

References

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