Skip to main content

Edimax BR-6208AC EUVDEUVD-2026-97738

| CVE-2026-108918 CRITICAL
Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') (CWE-74)
2026-10-12 cna@vuldb.com GHSA-x6qv-gj4w-78gc
9.3
CVSS 4.0 · Vendor: vuldb
View

Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Reach device web interface over network
  2. Delivery
    Send crafted request to /goform/formWlanMP
  3. Exploit
    Inject shell command via readE2P argument
  4. Execution
    Execute OS commands on router
  5. Impact
    Pivot or enlist device in botnet

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Input neutralization, injection prevention
Exploitation Conditions

No special conditions beyond network reachability - remote unauthenticated exploitation (AV:N/PR:N/UI:N) of the /goform/formWlanMP endpoint via the readE2P parameter on Edimax BR-6208AC firmware 1.32. The practical limiting factor is exposure: the attacker must be able to reach the device's web management interface (internet-facing WAN management, or same LAN/Wi-Fi segment), which is the main constraint since SOHO routers often restrict management to the internal network by default. The decisive aggravating condition is that the product is end-of-life with no vendor patch, so exposed devices remain permanently vulnerable.

Impact

Multiple signals converge on genuine high risk, with one tempering factor. The CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:N/UI:N) describes a network-reachable, low-complexity, unauthenticated flaw with full confidentiality/integrity/availability impact, and the CWE-74/command-injection classification means successful exploitation yields OS command execution on the device. The vector carries E:P (Proof-of-Concept), consistent with the referenced public exploit on GitHub, so weaponization barriers are low. However, this is NOT a confirmed-actively-exploited case: there is no CISA KEV listing and no EPSS score in the provided data, so real-world exploitation volume cannot be quantified from these inputs - treat exploitation as plausible/emerging rather than confirmed. The decisive risk amplifier is that the product is end-of-life ('no longer supported by the maintainer') and the vendor did not respond to disclosure, meaning NO official patch will be issued - unpatchable devices with public PoC are classic targets for botnet mass-scanning. Net: this is a real priority for anyone operating this hardware, driven less by proven mass exploitation and more by the combination of trivial unauthenticated RCE, available exploit code, and permanent lack of a fix. Missing data to note: no EPSS probability and no KEV confirmation were supplied.

Exploit ScenarioDerived

An attacker reachable over the network (internet-facing or LAN) sends a crafted request to /goform/formWlanMP with a malicious value in the readE2P argument, injecting shell metacharacters that the firmware passes to a system command. Because no authentication or user interaction is required (PR:N/UI:N), the attacker gains command execution on the router and can pivot, intercept traffic, or enroll the device into a botnet. A public proof-of-concept exploit is available in the referenced GitHub repository, lowering the skill barrier.

Monitor Track and reassess. Why: Vendor states no customer action required.
No patch listed yet 2.0% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAIv1 – Oct 12, 2026

Unauthenticated command injection in Edimax BR-6208AC firmware version 1.32 allows a remote attacker to execute arbitrary operating-system commands on the router by supplying crafted input through the readE2P argument of the /goform/formWlanMP endpoint. The issue is rated critical (CVSS 4.0 base 9.3; an independent assessment reaches the equivalent CVSS 3.1 vector AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) and publicly available exploit code exists, although there is no confirmation of active exploitation (device is not in CISA KEV). The vendor was contacted early and did not respond, and the product is no longer supported, so the decisive practical concern is permanent exposure: any BR-6208AC 1.32 whose web management interface is reachable over the WAN or from an untrusted network segment remains exploitable indefinitely.

RemediationAI

No vendor-released patch has been identified at time of analysis: the vendor did not respond to the coordinated disclosure and the BR-6208AC is explicitly out of support, so no fixed firmware version can be cited and none should be expected. The primary remediation is to retire or replace the device with a currently supported router; because the flaw is in the management daemon itself, there is no configuration change that removes the vulnerability, only controls that reduce reachability. Immediate compensating controls, in order of effectiveness: first, disable WAN-side remote management and, if the firmware allows it, restrict the administrative interface to the LAN only - this removes the internet-facing attack path that makes the CVSS AV:N rating practically exploitable, at the cost of losing remote administration; second, add a firewall rule blocking inbound TCP 80/443 (and any alternate management port in use) to the router's management address from all untrusted networks, and place the device behind a NAT boundary so the goform handler is not directly reachable - this limits exploitation to attackers who already have a foothold on the same LAN or Wi-Fi segment; third, segment the router's management plane onto a dedicated VLAN or management SSID with strong WPA2/WPA3 credentials and no guest or IoT access, accepting the operational overhead of separate network configuration; fourth, monitor or block outbound traffic from the router to unexpected destinations as a detection measure for post-exploitation activity, recognizing this is detection rather than prevention. Simply changing the administrator password does not mitigate this issue because no authentication is required (PR:N) to reach the vulnerable endpoint.

Affected VersionsENISA

BR-6208AC 1.32

Affected Packages

euvd br_6208ac no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

The affected component is the Edimax BR-6208AC's embedded web management daemon, which exposes the legacy Boa-style goform handler /goform/formWlanMP. The readE2P parameter is intended to read EEPROM (E2P) calibration or configuration data for the wireless radio, and the handler passes caller-supplied input into a shell invocation without neutralizing shell metacharacters. CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component, i.e. 'Injection') is the assigned root-cause class; the concrete manifestation is OS command injection, the child category CWE-78. Because SOHO router HTTP daemons of this generation typically run with root privileges, successful injection yields full control of the device - enabling configuration tampering, credential and traffic interception, persistent implant installation, and use of the router as a pivot into the attached LAN. The request is fully network-deliverable with no authentication or user interaction (PR:N/UI:N in both the CNA and independent vectors), so reachability of the management interface is the sole gating condition. No CPE identifiers were supplied in the upstream data, so the affected platform is pinned by the advisory text to Edimax BR-6208AC firmware 1.32 rather than by a formal CPE range.

Know when Edimax gets its next vulnerability

  • Watch products and get an email when something new is published
  • Check this CVE against your own stack and servers
  • Exploit and PoC references, threat intelligence from 22 sources

No credit card · 7-day full trial

Severity by source

Vendor (vuldb) PRIMARY 9.3 CRITICAL
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P
vuln.today AI 9.8 CRITICAL

Unauthenticated network command injection with low complexity (PR:N/AC:L/AV:N) yields full OS command execution on the router, so C/I/A:H; scope unchanged as impact stays within the device.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (vuldb).

CVSS VectorVendor: vuldb

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Vulnerable system: Confidentiality
High
Vulnerable system: Integrity
High
Vulnerable system: Availability
High
Subsequent system: Confidentiality
High
Subsequent system: Integrity
High
Subsequent system: Availability
High

DescriptionCVE.org

A vulnerability was identified in Edimax BR-6208AC 1.32. Impacted is an unknown function of the file /goform/formWlanMP. The manipulation of the argument readE2P leads to command injection. It is possible to initiate the attack remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way. This vulnerability only affects products that are no longer supported by the maintainer.

Executive ViewAI

Why It Matters

The Edimax BR-6208AC router running firmware version 1.32 is affected by a critical unauthenticated command injection vulnerability (CVE-2026-108918) that allows remote attackers to execute arbitrary operating system commands; No vendor-released patch identified at time of analysis because the product is end-of-life. Publicly available exploit code exists, and any device with its web management interface exposed to the internet or untrusted networks remains permanently at risk, potentially leading to network compromise and data loss. Leadership should prioritize immediate isolation or replacement of these devices to prevent unauthorized access to internal systems.

Business Impact: Severe
Compensating Controls

Disable remote management and WAN access to the web interface, restrict management to trusted internal networks only, segment affected devices, monitor for exploitation attempts, and replace end-of-life devices as soon as possible.

Threat Intelligence Overview

EPSS Score
2.0%
Top 19% exploitable
Prevalence
Low
retired consumer SOHO Wi-Fi router, niche end-of-life footprint
Social Media
1
Sightings
Data Quality
7 sources
Confidence: High

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.

SignalValue
Severity CRITICAL
CISA KEV No
Public POC No
EPSS 2.0%
Patch available No
Active threat No
Deciding rule
Vendor states no customer action required
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Out-of-Cycle
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact
Very High

Priority Score

48
Low Medium High Critical
KEV: 0
EPSS: +2
CVSS: +46
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

OS command injection occurs when an application passes unsanitized user input directly into system shell commands.

More in Edimax

View all
CVE-2025-1316 CRITICAL
9.3 Mar 05

Edimax IC-7100 IP camera allows unauthenticated remote code execution through improper neutralization of requests, with

CVE-2025-28146 CRITICAL POC
9.8 Apr 04

Edimax AC1200 Wave 2 Dual-Band Gigabit Router BR-6478AC V3 1.0.15 was discovered to contain a command injection vulnerab

CVE-2025-45857 CRITICAL POC
9.8 May 13

EDIMAX CV7428NS v1.20 was discovered to contain a remote code execution (RCE) vulnerability via the command parameter in

CVE-2025-22912 CRITICAL POC
9.8 Jan 16

RE11S v1.11 was discovered to contain a command injection vulnerability via the component /goform/formAccept. Rated crit

CVE-2025-22906 CRITICAL POC
9.8 Jan 16

RE11S v1.11 was discovered to contain a command injection vulnerability via the L2TPUserName parameter at /goform/setWAN

CVE-2025-22905 CRITICAL POC
9.8 Jan 16

RE11S v1.11 was discovered to contain a command injection vulnerability via the command parameter at /goform/mp. Rated c

CVE-2020-37125 CRITICAL POC
9.8 Feb 05

Unauthenticated remote code execution via OS command injection in Edimax EW-7438RPn-v3 Mini wireless extender firmware 1

CVE-2025-70161 CRITICAL POC
9.8 Jan 09

EDIMAX BR-6208AC V2 router allows command injection through the pppUserName field via system() without sanitization. PoC

CVE-2025-22916 CRITICAL POC
9.8 Jan 16

RE11S v1.11 was discovered to contain a stack overflow via the pppUserName parameter in the formPPPoESetup function. Rat

CVE-2025-22904 CRITICAL POC
9.8 Jan 16

RE11S v1.11 was discovered to contain a stack overflow via the pptpUserName parameter in the setWAN function. Rated crit

CVE-2025-22907 CRITICAL POC
9.8 Jan 16

RE11S v1.11 was discovered to contain a stack overflow via the selSSID parameter in the formWlSiteSurvey function. Rated

CVE-2023-31986 CRITICAL POC
9.8 May 15

A Command Injection vulnerability in Edimax Wireless Router N300 Firmware BR-6428NS_v4 allows attacker to execute arbitr

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy