UGREEN CM933 Administrative missing authentication

published 2026-05-09 6 mo ago modified 2026-07-24 3 mo ago also EUVD-2026-28909

cvss: 6.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 25%
public exploits: 0; none known

A security vulnerability has been detected in UGREEN CM933 1.1.59.4319. The impacted element is an unknown function of the component Administrative Interface. Such manipulation leads to missing authentication. The attack requires being on the local network. You should upgrade the affected component. The vendor replied: "We have successfully confirmed and reproduced the issue. We take this matter very seriously and have incorporated the fix into our development schedule. The issue is scheduled to be resolved in the release version coming in late April."

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 5 mo ago (2026-05-12)

Exploit prediction

0.32% chance of exploitation in the next 30 days, higher than 25% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	4.0	5.3	CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X
CNA	3.1	6.3	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C
CNA	3.0	6.3	CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C
CNA	2.0	5.8	AV:A/AC:L/Au:N/C:P/I:P/A:P/E:ND/RL:OF/RC:C
CNA	4.0	5.3	CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CNA	3.1	6.3	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CNA	2.0	5.8	AV:A/AC:L/Au:N/C:P/I:P/A:P

Affected products

UGREEN CM933

Classification

Weakness

CWE-306 Missing Authentication for Critical Functionality
CWE-287 Improper Authentication

References

vuldb.com /vuln/362337
vdb-entry
vuldb.com /vuln/362337/cti
signature, permissions-required
vuldb.com /submit/793588
third-party-advisory

Sources

CVE List CVE-2026-8185
NVD CVE-2026-8185

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Summary