EUVD-2026-62224
GHSA-m8hp-gppg-6x6v
Severity by source
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: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
Unauthenticated network request to the CGI with no user interaction gives AV:N/AC:L/PR:N/UI:N; memory-corruption RCE on the device yields C:H/I:H/A:H with scope unchanged.
Primary rating from Vendor (VulDB).
CVSS VectorVendor: VulDB
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: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
Lifecycle Timeline
2DescriptionCVE.org
A flaw has been found in Comfast CF-N1-S 2.6.0.1. This affects the function get_para_from_uri of the file /cgi-bin/mbox-config of the component URI Parameter Parsing. This manipulation of the argument width/height causes stack-based buffer overflow. The attack can be initiated remotely.
AnalysisAI
Remote unauthenticated stack-based buffer overflow in the Comfast CF-N1-S wireless device (firmware 2.6.0.1) lets attackers corrupt memory by supplying oversized width/height values to the get_para_from_uri routine of the /cgi-bin/mbox-config endpoint. Because the flaw is reachable over the network with no authentication or user interaction (CVSS 4.0 base 10.0), a successful write can crash the device or achieve arbitrary code execution on the embedded firmware. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires network reachability to the Comfast CF-N1-S HTTP management service and the ability to send a request to the /cgi-bin/mbox-config CGI with attacker-controlled width or height URI parameters - no credentials, session, or user interaction are needed per the CVSS 4.0 vector (PR:N/UI:N/AT:N). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The signals are largely aligned toward high urgency: the CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:N/UI:N) describes a trivially reachable, unauthenticated network attack, and the vendor-scored 10.0 reflects full compromise of confidentiality, integrity, and availability. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker who can reach the device's web management interface sends a single crafted HTTP request to /cgi-bin/mbox-config with an over-long width (or height) parameter, overflowing the stack buffer in get_para_from_uri. With no authentication or user interaction required, this either crashes the CGI/device or, on the unprotected embedded target, redirects execution to attacker-supplied shellcode for remote code execution. … |
| Remediation | No vendor-released patch identified at time of analysis, and no fixed firmware version is cited in the source data, so remediation must rely on compensating controls. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: identify all Comfast CF-N1-S devices in inventory and document firmware versions; isolate affected devices from production networks or implement network segmentation (VLAN with access controls) and contact Comfast support for patch availability. …
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Stack-based buffer overflow in the Comfast CF-N1-S 2.6.0.1 web management interface enables remote code execution via th
Stack-based buffer overflow in the Comfast CF-N1-S firmware version 2.6.0.1 allows remote attackers with low-privilege w
Stack-based buffer overflow in Comfast CF-N1-S firmware 2.6.0.1 allows authenticated remote attackers to execute arbitra
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Command injection in the Comfast CF-N1-S firmware 2.6.0.1 CGI management interface allows remote low-privileged attacker
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Same weakness CWE-121 – Stack-based Buffer Overflow
View allSame technique Stack Overflow
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External POC / Exploit Code
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