What is the CVSS score of CVE-2026-2071?

CVE-2026-2071 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-2026-2071?

A critical buffer overflow vulnerability in UTT 进取 520W devices (version 1.7.7-180627) allows remote attackers to execute arbitrary code with a CVSS score of 8.8.

Is there a public PoC exploit available for CVE-2026-2071?

Yes, a public proof-of-concept exploit is available for CVE-2026-2071. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2026-2071?

Within 24 hours: Identify and inventory all UTT 进取 520W devices running version 1.7.7-180627 in your environment; isolate affected devices from critical networks if possible. Within 7 days: Implement network segmentation to restrict access to the vulnerable /goform/formP2PLimitConfig endpoint; deploy WAF rules to block malicious POST requests to this function. Within 30 days: Contact UTT for patch availability and deployment timeline; evaluate device replacement or decommissioning if patches remain unavailable; conduct forensic analysis for evidence of exploitation.

520w Firmware CVE-2026-2071

HIGH

Buffer Overflow (CWE-119)

2026-02-07 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 07, 2026 - 01:15 nvd

HIGH 8.8

DescriptionCVE.org

A vulnerability was found in UTT 进取 520W 1.7.7-180627. The impacted element is the function strcpy of the file /goform/formP2PLimitConfig. Performing a manipulation of the argument except results in buffer overflow. The attack is possible to be carried out remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.

AnalysisAI

Unauthenticated attackers can exploit a buffer overflow in the UTT 520W Firmware's P2P configuration function via a crafted request to achieve remote code execution with high privileges. The vulnerability requires only network access and low complexity to exploit, with public exploit code already available. No patch has been released by the vendor despite early notification.

Technical ContextAI

Classified as CWE-119 (Buffer Overflow). Affects 520W Firmware. A vulnerability was found in UTT 进取 520W 1.7.7-180627. The impacted element is the function strcpy of the file /goform/formP2PLimitConfig. Performing a manipulation of the argument except results in buffer overflow. The attack is possible to be carried out remotely. The exploit has been made public and could 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.