Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessIdentify device public IPv6 WAN address via carrier prefix scanning
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DeliveryProbe [IPv6]:8080 to confirm admin panel reachability
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ExploitAuthenticate using default or stolen high-privilege credentials
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ExecutionQuery exposed internal API endpoints
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ImpactExfiltrate sensitive device or network configuration data
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V14 - Data Protection Data exposure prevention
MITRE ATT&CK
2 techniques across 2 tactics: Collection, Discovery The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Exploitation Conditions | Exploitation requires three concurrent conditions: (1) the device must have a publicly routable global unicast IPv6 WAN address assigned by the carrier or ISP - devices behind IPv4 NAT without IPv6 WAN are not affected via this path; (2) no upstream firewall, carrier-grade ACL, or network perimeter control must be blocking inbound TCP port 8080 to the device's IPv6 address; and (3) the attacker must possess or obtain high-privilege administrative credentials for the web panel, as confirmed by PR:H in the CVSS 4.0 vector - port reachability alone does not yield sensitive data without authentication. The CVSS VI:N and VA:N metrics confirm that even successful exploitation does not allow modification of data or disruption of service, limiting impact to information disclosure. Devices deployed without IPv6 WAN, or protected by upstream IPv6 packet filtering on port 8080, are not exposed. |
| Impact | The CVSS 4.0 score of 6.9 (Medium) is driven by network accessibility (AV:N), low attack complexity (AC:L), and no required attack prerequisites (AT:N), but is moderated significantly by the high-privilege requirement (PR:H), yielding high confidentiality impact (VC:H) with zero integrity or availability impact. This vector correctly captures that admin credentials are required to extract sensitive data - bare port reachability does not yield exploitation on its own. No EPSS data was supplied, so exploitation probability cannot be quantified. Absence of a KEV listing and no identified public exploit code suggest opportunistic mass exploitation is unlikely. Real-world risk is nonetheless meaningful for device owners with active IPv6 WAN connectivity and no upstream firewall: the admin panel being internet-facing enables credential brute-force or stuffing attacks that were previously LAN-restricted by network topology, and any admin credential compromise now results in WAN-reachable sensitive data exposure rather than just local. |
| Exploit ScenarioDerived | An attacker enumerates a carrier's IPv6 prefix space, identifies a reachable Acer Connect M6E device by probing port 8080 for the admin panel's HTTP response fingerprint, and then performs credential stuffing using default or previously leaked admin credentials. With high-privilege credentials in hand, the attacker queries internal API endpoints - previously unreachable from WAN under a correct binding configuration - and extracts sensitive device configuration, network topology, or credential data. No public exploit code has been identified, making this scenario more likely in targeted rather than opportunistic attacks. |
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Alert meAnalysisAIv1 – Jun 04, 2026
The web administration panel of the Acer Connect M6E 5G Portable WiFi Router binds to the wildcard IPv6 address [::] on port 8080, exposing internal API endpoints over the public WAN interface without default firewall restrictions. All firmware versions through M6E_AI_1.00.000019 are affected, enabling authenticated remote attackers with high-privilege credentials to reach and query administrative APIs that are intended to be LAN-restricted only. No public exploit code has been identified and no CISA KEV listing exists at time of analysis, but the design flaw structurally expands the attack surface for any admin-level compromise.
RemediationAI
Consult the Acer advisory at https://community.acer.com/en/kb/articles/19707 for firmware update guidance. The affected version ceiling of M6E_AI_1.00.000019 implies a patched firmware release exists, but the exact fixed version number is not independently confirmed from available input data - verify the specific update version directly from the Acer advisory before deploying. As compensating controls pending firmware update: apply an ACL or firewall rule at the upstream carrier, CPE router, or network perimeter to block inbound TCP port 8080 to the device's public IPv6 address, which prevents WAN-side access to the admin panel without disrupting LAN functionality. Alternatively, disable IPv6 WAN connectivity on the device entirely if not operationally required, though this will prevent IPv6-only services from functioning. Do not rely on obscurity of the IPv6 address as a control, as IPv6 scanning tools can enumerate carrier prefixes.
Affected VersionsENISA
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Technical ContextAI · show details
The router's embedded web server binds to the wildcard IPv6 socket address [::] on port 8080, which instructs the OS to accept connections on all IPv6-capable network interfaces simultaneously - including the carrier-assigned global unicast WAN interface. This contrasts with the intended behavior of binding only to link-local or LAN-side interfaces (e.g., fe80:: or the LAN bridge). The root cause is classified as CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor): the application fails to restrict network interface scope, causing internal administrative API endpoints to be reachable from arbitrary WAN-side hosts. The affected product is confirmed by CPE string cpe:2.3:a:acer:connect_m6e_5g_portable_wifi_router:*:*:*:*:*:*:*:*, covering all firmware builds at or below M6E_AI_1.00.000019 as documented under ENISA EUVD-2026-34229.
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Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Primary rating from Vendor (Acer) · only source for this CVE.
CVSS VectorVendor: Acer
Lifecycle Timeline
2DescriptionCVE.org
The web administration panel binds broadly to the public IPv6 address space on port [::]:8080 without default firewall limits, making internal API endpoints reachable over the WAN.
Threat Intelligence Overview
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.
Unauthenticated remote command injection in Acer Connect M6E 5G Portable WiFi Router (firmware ≤ M6E_AI_1.00.000019) all
Command injection in the Acer Connect M6E 5G Portable WiFi Router allows authenticated remote attackers to install arbit
Authentication bypass in the Acer Connect M6E 5G Portable WiFi Router allows low-privileged remote attackers to reach a
Authentication bypass in the Acer Connect M6E 5G Portable WiFi Router's M3WebServer production build exposes hard-coded
Authentication bypass in the Acer Connect M6E 5G Portable WiFi Router (firmware ≤ M6E_AI_1.00.000019) allows remote atta
Privilege escalation via MDM endpoint hijack in the Acer Connect M6E 5G Portable WiFi Router (firmware ≤M6E_AI_1.00.0000
Cryptographic weaknesses in the Acer Connect M6E 5G Portable WiFi Router (firmware versions through M6E_AI_1.00.000019)
Sensitive information disclosure in the Acer Connect M6E 5G Portable WiFi Router exposes cleartext SMTP authentication p
Unauthenticated exposure of internal multimedia session archives in the Acer Connect M6E 5G Portable WiFi Router lets re
Exposed factory diagnostics in Acer Connect M6E 5G Portable WiFi Router (firmware M6E_AI_1.00.000019 and earlier) allow
Database flooding via unauthenticated abuse of Acer Connect M6E 5G Portable WiFi Router's registration endpoint allows r
Public exposure of telemetry data affects Acer Connect M6E 5G Portable WiFi Router, where misconfigured cloud storage co
EUVD-2026-34229
GHSA-569c-634x-7vch
NVD
CVE.org
EPSS
Vulnrichment
VulDB
Exploit-DB