What is the CVSS score of CVE-2026-2070?

CVE-2026-2070 has a CVSS 3.1 base score of 8.8 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.1%.

Which versions of 520w Firmware are affected by CVE-2026-2070?

A critical vulnerability (CVE-2026-2070) affecting UTT 进取 520W devices allows remote code execution through a buffer overflow in the policy route configuration function.

Is there a public PoC exploit available for CVE-2026-2070?

Yes, a public proof-of-concept exploit is available for CVE-2026-2070. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2026-2070?

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. Within 7 days: Implement network segmentation to restrict management access to these devices and deploy WAF rules to block requests to /goform/formPolicyRouteConf endpoint. Within 30 days: Develop and execute a device replacement plan with the vendor or transition to alternative solutions; establish monitoring for exploitation attempts.

520w Firmware CVE-2026-2070

HIGH

Buffer Overflow (CWE-119)

2026-02-06 cna@vuldb.com

Buffer Overflow 520w Firmware Utt

8.8

CVSS 3.1 · NVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

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. The flaw stems from improper bounds checking in the GroupName parameter handling.

Technical ContextAI

Classified as CWE-119 (Buffer Overflow). Affects 520W Firmware. 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.

RemediationAI

Monitor vendor advisories for a patch. Enable ASLR, DEP/NX, and stack canaries where possible. Restrict network access to the affected service where possible.