CVE-2025-2492Known exploitationPublic exploitNetwork attack vector

Unauthenticated function execution via alternate URL path

Published Apr 18, 2025 · Updated Feb 24, 2026

Authentication bypass in ASUS Router AiCloud 2.0.0.39 and earlier allows remote attackers to execute protected functions via crafted requests. The lighttpd-based server applies URL-dependent authentication incorrectly, letting an alternate-path GETROUTERINFO request return device details without credentials. AiCloud must be enabled and the router running for at least two minutes; exploitation exposes protected functions and supports command execution when chained with a separate injection flaw.

CVSS severity9.2
Critical
EPSS probability1.11%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in ASUS Router AiCloud 2.0.0.39 and earlier allows remote attackers to execute protected functions via crafted requests. The lighttpd-based server applies URL-dependent authentication incorrectly, letting an alternate-path GETROUTERINFO request return device details without credentials. AiCloud must be enabled and the router running for at least two minutes; exploitation exposes protected functions and supports command execution when chained with a separate injection flaw.

The record

CVE
CVE-2025-2492
Published
Apr 18, 2025
Updated
Feb 24, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-288, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 7, 2025Exploitation reportedNICTER-observed AiCloud exploitation and bot infection
  2. Mar 7, 2025Exploitation reportedAiCloud authentication-bypass and command-injection chain
  3. Apr 18, 2025CVE publishedPublication date reported by the CVE source.
  4. Feb 24, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.2ASUSCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationReported
Public exploitPublished

Weakness, pattern, technique

CWE-288Authentication Bypass Using an Alternate Path or Channel
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Reported exploitation

Technologies

Your stack

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Your stack

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