CVE-2025-2492
published 2025-04-18CVE-2025-2492: An improper authentication control vulnerability exists in AiCloud. This vulnerability can be triggered by a crafted request, potentially leading to…
PriorityP180critical9.2CVSS 4.0
AVNACLATPPRNUINVCHVIHVALSCNSINSANEXCRXIRXARXMAVXMACXMATXMPRXMUIXMVCXMVIXMVAXMSCXMSIXMSAXSXAUXRXVXREXUX
ITWEXPLOITVulnCheck KEVInitial access
Exploited in the wild
EPSS
1.02%
59.3th percentile
An improper authentication control vulnerability exists in AiCloud. This vulnerability can be triggered by a crafted request, potentially leading to unauthorized execution of functions.
Refer to the 'ASUS Router AiCloud vulnerability' section on the ASUS Security Advisory for more information.
Affected
4 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| asus | router | — | — |
| asus | router | — | — |
| asus | router | — | — |
| asus | router | — | — |
Detection & IOCsextracted from sources · hover to see the quote
snort↗
SID 66433
snort↗
SID 66432
snort↗
SID 66430
snort↗
SID 66431
snort↗
SID 301493
yara↗
Unix.Backdoor.Agent-10059997-1
yara↗
Unix.Backdoor.Agent-10059998-0
yara↗
Unix.Backdoor.Agent-10059999-0
yara↗
Java.Backdoor.Agent-10060000-0
yara↗
Unix.Backdoor.Agent_mips32-10060001-0
yara↗
Unix.Backdoor.Agent_mips32r2-10060002-0
yara↗
Unix.Backdoor.Agent_armv7-10060003-0
yara↗
Unix.Backdoor.Agent_mips1-10060004-0
yara↗
Unix.Backdoor.Agent_mips32r2el-10060005-0
yara↗
Unix.Backdoor.Agent_mips32el-10060006-0
- →Hunt for self-signed TLS certificates on AiCloud services with a 100-year validity period — this replaced the legitimate ASUS-generated certificate in ~99% of compromised WrtHug devices and was used to fingerprint ~50,000 infected IPs. ↗
- →Detect LONGLEASH implant traffic by matching the hardcoded User-Agent 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.95 Safari/537.36' on non-browser processes or router-originated HTTP sessions. ↗
- →Presence of LEASHTEST (internally named 'iot-test') ELF binary on a MIPS device is a strong indicator of compromise even though the binary itself is not directly malicious. ↗
- →JARLEASH configuration files contain comments in Simplified Chinese; detecting JAR-based backdoors on router/embedded infrastructure with Chinese-language config comments is a high-fidelity indicator of UAT-7810 activity. ↗
- ·CVE-2025-2492 only affects ASUS routers with the AiCloud feature enabled; devices without AiCloud active are not exposed to this specific attack vector. ↗
- ·WrtHug attackers do not upgrade firmware on compromised devices, leaving them open to takeover by additional threat actors — detections should account for multi-actor compromise scenarios. ↗
- ·LONGLEASH supports proxying over HTTP, DNS, SOCKS, TCP, ICMP, and UDP, and can act as an intermediate C2 relay — network-layer detections must account for multi-protocol tunneling and relay hops that obscure the true C2 origin. ↗
- ·LONGLEASH contains a self-destruct capability that removes the implant and all traces if a suspicious connection or tampering is detected, which may hinder forensic recovery on live systems. ↗
CVSS provenance
nvdv4.09.2CRITICALCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/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
vulncheck9.2CRITICAL
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GHSA
GHSA-532h-wp9v-fjxq: An improper authentication control vulnerability exists in AiCloud
ghsa_unreviewed·2025-04-18
CVE-2025-2492 [CRITICAL] CWE-288 GHSA-532h-wp9v-fjxq: An improper authentication control vulnerability exists in AiCloud
An improper authentication control vulnerability exists in AiCloud. This vulnerability can be triggered by a crafted request, potentially leading to unauthorized execution of functions.
Refer to the 'ASUS Router AiCloud vulnerability' section on the ASUS Security Advisory for more information.
VulnCheck
ASUS asus_firmware Authentication Bypass Using an Alternate Path or Channel
vulncheck·2025·CVSS 9.2
CVE-2025-2492 [CRITICAL] ASUS asus_firmware Authentication Bypass Using an Alternate Path or Channel
ASUS asus_firmware Authentication Bypass Using an Alternate Path or Channel
An improper authentication control vulnerability exists in AiCloud. This vulnerability can be triggered by a crafted request, potentially leading to unauthorized execution of functions.
Refer to the 'ASUS Router AiCloud vulnerability' section on the ASUS Security Advisory for more information.
Affected: ASUS AiCloud
Required Action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Exploitation References: https://securityscorecard.com/wp-content/uploads/2025/11/STRIKE_Asus_WrtHug-Report_V6.pdf; https://www.loginsoft.com/reports/annually/vulnerability-intelligence-report-2025
No detection rules found.
No public exploits indexed.
Hackernews
China-Linked UAT-7810 Expands ORB Network With New LONGLEASH Malware
blogs_hackernews·2026-07-08
CVE-2020-22653 China-Linked UAT-7810 Expands ORB Network With New LONGLEASH Malware
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## China-Linked UAT-7810 Expands ORB Network With New LONGLEASH Malware
A Chinese threat actor tracked as UAT-7810 is actively refining its bespoke malware to expand its Operational Relay Box (ORB) network by breaking into internet-facing networking devices.
According to findings from Cisco Talos, UAT-7810 is an advanced persistent threat (APT) actor that's responsible for maintaining and proliferating LapDogs , an ORB network that first came to light in June 2025.
"UAT-7810 is most likely tasked with establishing Operational Relay Box (ORB) networks that can then be leveraged by associated secondary threat actors to conduct t
Talos
UAT-7810 continues building ORB networks using new malware
blogs_talos·2026-07-07
CVE-2020-22653 UAT-7810 continues building ORB networks using new malware
## UAT-7810 continues building ORB networks using new malware
Cisco Talos is actively tracking infrastructure and malware associated with UAT-7810, an advanced persistent threat (APT) actor responsible for maintaining and proliferating the LapDogs Operational Relay Box (ORB) network, first disclosed by SecurityScorecard in 2025.
UAT-7810 is most likely tasked with establishing Operational Relay Box (ORB) networks that can then be leveraged by associated secondary threat actors to conduct their own malicious attacks against high value targets.
Talos’ latest findings on UAT-7810 indicate that the threat actor continues to develop their custom-made malware, dubbed “SHORTLEASH,” with a newer version already being developed and hosted on attacker-controlled infrastructure. We track this new
Bleepingcomputer
ASUS warns of new critical auth bypass flaw in AiCloud routers
blogs_bleepingcomputer·2025-11-26·CVSS 8.2
CVE-2025-59366 [HIGH] ASUS warns of new critical auth bypass flaw in AiCloud routers
## ASUS warns of new critical auth bypass flaw in AiCloud routers
## Sergiu Gatlan
ASUS has released new firmware to patch nine security vulnerabilities, including a critical authentication bypass flaw in routers with AiCloud enabled.
AiCloud is a cloud-based remote access feature that comes with many ASUS routers, turning them into private cloud servers for remote media streaming and cloud storage.
As the Taiwanese electronics manufacturer explained, the CVE-2025-59366 vulnerability "can be triggered by an unintended side effect of the Samba functionality, potentially leading to allow execution of specific functions without proper authorization."
Remote attackers without privileges can exploit it by chaining a path traversal and an OS command injection weakness in low-complexity atta
Bleepingcomputer
New WrtHug campaign hijacks thousands of end-of-life ASUS routers
blogs_bleepingcomputer·2025-11-19·CVSS 8.8
[HIGH] New WrtHug campaign hijacks thousands of end-of-life ASUS routers
## New WrtHug campaign hijacks thousands of end-of-life ASUS routers
## Bill Toulas
Thousands of ASUS WRT routers, mostly end-of-life or outdated devices, have been hijacked in a global campaign called Operation WrtHug that exploits six vulnerabilities.
Over the past six months, scanners looking for ASUS devices compromised in Operation WrtHug identified "roughly 50,000 unique IPs" around the globe.
Most of the compromised devices have IP addresses located in Taiwan, while others are distributed across Southeast Asia, Russia, Central Europe, and the United States.
Notably, there are no observed infections within China, which may indicate a threat actor from this country, but researchers found insufficient evidence for high-confidence attribution.
According to SecurityScorecard’s STRI
Bleepingcomputer
ASUS warns of critical auth bypass flaw in DSL series routers
blogs_bleepingcomputer·2025-11-14·CVSS 9.3
CVE-2025-59367 [CRITICAL] ASUS warns of critical auth bypass flaw in DSL series routers
## ASUS warns of critical auth bypass flaw in DSL series routers
## Sergiu Gatlan
ASUS has released new firmware to patch a critical authentication bypass security flaw impacting several DSL series router models.
Tracked as CVE-2025-59367 , this vulnerability allows remote, unauthenticated attackers to log into unpatched devices exposed online in low-complexity attacks that don't require user interaction.
ASUS has released firmware version 1.1.2.3_1010 to address this vulnerability for DSL-AC51, DSL-N16, and DSL-AC750 router models.
"An authentication bypass vulnerability has been identified in certain DSL series routers, may allow remote attackers to gain unauthorized access into the affected system," ASUS explains .
"ASUS recommends update to the latest firmware to ensure your devi
2025-04-18
Published
Exploited in the wild