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

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

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

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. …

Unlock full vulnerability intelligence

Risk assessment & exploitation conditions
Attack chain visualization
Remediation with exact patch versions
Threat intelligence from 22 sources
Personal watchlist & email alerts

Continue with Google Continue with GitHub

Free forever · No credit card required

Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access

Authenticate to UTT device

Delivery

Send crafted request to /goform/formP2PLimitConfig

Exploit

Manipulate 'except' parameter with oversized input

Execution

Overflow strcpy buffer

Impact

Execute arbitrary code with device privileges

Access

Authenticate to UTT device

Delivery

Send crafted request to /goform/formP2PLimitConfig

Exploit

Manipulate 'except' parameter with oversized input

Execution

Overflow strcpy buffer

Impact

Execute arbitrary code with device privileges

Vulnerability AssessmentAI

Exploitation	Attacker must have valid login credentials for UTT 进取 520W version 1.7.7-180627. … 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: 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. …

Threat intelligence, references, and detailed analysis are available after sign-in.

CVE-2026-2071 vulnerability details – vuln.today

Back

520w Firmware CVE-2026-2071

Severity by source

CVSS VectorNVD

Lifecycle Timeline

DescriptionCVE.org

AnalysisAI

Unlock full vulnerability intelligence

Attack ChainAIDerived

Vulnerability AssessmentAI

Recommended ActionAI

Share

External POC / Exploit Code