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%.

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

View

Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

Access

Access Web Management Interface
Exploit

Submit crafted policyNames parameter
Execution

Inject OS command in formPdbUpConfig
Impact

Execute arbitrary system command

Vulnerability Assessment

Weakness	CWE CWE-77 OWASP Top 10:2025 A05:2025 - Injection ASVS 5.0 V1 - Encoding and Sanitization Command injection prevention MITRE ATT&CK 1 technique across 1 tactic: Execution The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Exploitation Conditions	UTT HiPER 520 version 1.7.7-160105 with Web Management Interface enabled. Attacker requires high-privilege authentication credentials to access /goform/formPdbUpConfig endpoint.
Impact	CVSS 7.2 (HIGH). Attack vector: Network. Complexity: Low. Privileges required: High. User interaction: None. Exploitable via remote/network. Public exploit/POC available.
Exploit ScenarioDerived	A remote attacker could exploit this flaw, os command injection.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).

No patch listed yet 0.5% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 12, 2026

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.

Earlier versions of this analysis (1)

v1 Mar 12, 2026 - 22:04 CVSS 7.2

RemediationAI

Monitor vendor advisories for a patch. Restrict network access to the affected service where possible.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

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.

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Exploit and PoC references, threat intelligence from 22 sources

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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

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.

Executive ViewAI

Why It Matters

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. Organizations operating these devices face immediate risk of unauthorized configuration changes and potential system compromise.

Business Impact: High

Compensating Controls

Implement Web Application Firewall (WAF) rules to block requests to /goform/formPdbUpConfig; restrict administrative access via network segmentation and IP whitelisting; disable web management access if alternative management methods exist; monitor for exploitation attempts; consider device replacement if patch remains unavailable.

Threat Intelligence Overview

EPSS Score

0.5%

Top 36% exploitable

Exploit

POC

Public exploit code exists

Data Quality

5 sources

Confidence: Medium

NVD

CVE.org

EPSS

GitHub

VulDB

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity HIGH

CISA KEV No

Public POC Yes

EPSS 0.5%

Patch available No

Active threat No

Deciding rule

HIGH severity (CVSS 7.0-8.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.