What is the CVSS score of CVE-2026-2846?

CVE-2026-2846 has a CVSS 3.1 base score of 7.2 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.5%.

Which versions of 520 Firmware are affected by CVE-2026-2846?

A HIGH severity vulnerability (CVE-2026-2846) has been identified in UTT HiPER 520 devices affecting the web management interface, with public exploits already available.

Is there a public PoC exploit available for CVE-2026-2846?

Yes, a public proof-of-concept exploit is available for CVE-2026-2846. Prioritise patching immediately. EPSS: 0.5%.

How to fix or mitigate CVE-2026-2846?

Within 24 hours: Inventory all UTT HiPER 520 devices running version 1.7.7-160105 and restrict network access to the web management interface (/goform/formPdbUpConfig). Within 7 days: Implement WAF rules to block malicious requests to the vulnerable endpoint and disable the PdbUpConfig function if operationally feasible. Within 30 days: Contact UTT for patch availability; if no patch is released, plan device replacement or isolation on a secure, segmented network.

520 Firmware CVE-2026-2846

HIGH

Command Injection (CWE-77)

2026-02-20 cna@vuldb.com

Command Injection 520 Firmware Utt

7.2

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.2 HIGH

AV:N/AC:L/PR:H/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

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 22:04 vuln.today

PoC Detected

Feb 24, 2026 - 15:26 vuln.today

Public exploit code

CVE Published

Feb 20, 2026 - 16:22 nvd

HIGH 7.2

DescriptionCVE.org

A security vulnerability has been detected in UTT HiPER 520 1.7.7-160105. This impacts the function sub_44D264 of the file /goform/formPdbUpConfig of the component Web Management Interface. The manipulation of the argument policyNames leads to os command injection. The attack can be initiated remotely. The exploit has been disclosed publicly and may be used.

AnalysisAI

Remote command injection in UTT HiPer 520 Firmware 1.7.7-160105 web management interface allows unauthenticated attackers to execute arbitrary OS commands through the policyNames parameter. Public exploit code exists for this vulnerability, increasing risk of active exploitation. No patch is currently available.

Technical ContextAI

Classified as CWE-77 (Command Injection). Affects 520 Firmware. A security vulnerability has been detected in UTT HiPER 520 1.7.7-160105. This impacts the function sub_44D264 of the file /goform/formPdbUpConfig of the component Web Management Interface. The manipulation of the argument policyNames leads to os command injection. The attack can be initiated remotely. The exploit has been disclosed publicly and may be used.