An authentication-bypass vulnerability exists in AiCloud.

published 2025-11-25 11mo ago modified 2026-11-03 6d ago also EUVD-2025-199586

cvss: 9.2; version 4.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 12.5%; EPSS 12.5% chance of exploitation in 30 days, percentile 96%
public exploits: 0; none known

An authentication-bypass vulnerability exists in AiCloud. This vulnerability can be triggered by an unintended side effect of the Samba functionality, potentially leading to allow execution of specific functions without proper authorization.

Refer to the Security Update for ASUS Router Firmware section on the ASUS Security Advisory for more information.

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CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: total
Assessed: 11mo ago (2025-11-26)

Exploit prediction

12.46% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
CNA	4.0	9.2	CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CNA	4.0	9.2	CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/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

Affected products

ASUS Router

Classification

Weakness

CWE-22 Improper Limitation of a Pathname to a Restricted Directory
CWE-78 Improper Neutralization of Special Elements used in an OS Command

References

asus.com /content/security-advisory/
vendor-advisory

Sources

CVE List CVE-2025-59366
NVD CVE-2025-59366

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