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520w Firmware CVE-2026-2070

HIGH
Buffer Overflow (CWE-119)
2026-02-06 cna@vuldb.com
8.8
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
8.8 HIGH
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

3
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
PoC Detected
Feb 13, 2026 - 18:55 vuln.today
Public exploit code
CVE Published
Feb 06, 2026 - 23:15 nvd
HIGH 8.8

DescriptionCVE.org

A vulnerability has been found in UTT 进取 520W 1.7.7-180627. The affected element is the function strcpy of the file /goform/formPolicyRouteConf. Such manipulation of the argument GroupName leads to buffer overflow. The attack can be executed remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

AnalysisAI

Remote code execution in UTT 520W firmware versions up to 1.7.7-180627 through a buffer overflow in the /goform/formPolicyRouteConf endpoint allows authenticated attackers to execute arbitrary commands on affected devices. Public exploit code is available for this vulnerability, and no patch has been released despite vendor notification. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Authenticate to device management interface
Delivery
Craft oversized GroupName parameter
Exploit
Send POST to /goform/formPolicyRouteConf
Execution
Overflow strcpy buffer
Impact
Execute arbitrary code

Vulnerability AssessmentAI

Exploitation Authenticated access to UTT 进取 520W firmware version 1.7.7-180627 management interface; ability to POST requests to /goform/formPolicyRouteConf endpoint with malicious GroupName parameter exceeding buffer limits. Additional conditions and limiting factors are described in the full assessment.
Risk Assessment CVSS 8.8 (HIGH). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario A remote attacker could exploit this flaw, buffer overflow.
Remediation Monitor vendor advisories for a patch. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours: Inventory all UTT 进取 520W 1.7.7-180627 devices in your environment and isolate affected units from production networks if possible. …

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CVE-2026-2070 vulnerability details – vuln.today

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