What is the CVSS score of CVE-2026-3015?

CVE-2026-3015 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%.

Is there a public PoC exploit available for CVE-2026-3015?

Yes, a public proof-of-concept exploit is available for CVE-2026-3015. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2026-3015?

Within 24 hours: Inventory all UTT HiPER 810G devices in production and identify version numbers; isolate affected devices to restricted network segments and disable remote management access where possible. Within 7 days: Implement WAF rules to block malicious requests to /goform/formPolicyRouteConf endpoint; establish continuous monitoring for exploitation attempts; contact UTT for patch availability and timeline. Within 30 days: Develop replacement strategy for affected devices; if patches become available, schedule immediate deployment; consider replacement with alternative vendors if no patch timeline is provided.

810g Firmware CVE-2026-3015

HIGH

Buffer Overflow (CWE-119)

2026-02-23 cna@vuldb.com

Buffer Overflow 810g Firmware Utt

8.8

CVSS 3.1 · NVD

View

Attack ChainAIDerived

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

Access

Authenticate to UTT HiPER 810G web interface
Delivery

Send POST request to /goform/formPolicyRouteConf
Exploit

Inject oversized GroupName parameter
Execution

Overflow buffer in strcpy function
Impact

Execute arbitrary code with device privileges

Vulnerability Assessment

Weakness	CWE CWE-119 OWASP Top 10:2025 A06:2021 - Vulnerable and Outdated Components ASVS 5.0 V15 - Secure Coding and Architecture Bounds checking, buffer size validation MITRE ATT&CK 2 techniques across 2 tactics: Execution, Privilege Escalation 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	Attacker must have valid login credentials for UTT HiPER 810G web management interface (requires PR:L authentication). Vulnerable versions: UTT HiPER 810G up to and including firmware 1.7.7-171114. The /goform/formPolicyRouteConf endpoint must be accessible and accepting the GroupName parameter without length validation.
Impact	CVSS 8.8 (HIGH). Attack vector: Network. Complexity: Low. Privileges required: Low. User interaction: None. Exploitable via remote/network. Public exploit/POC available.
Exploit ScenarioDerived	A remote attacker could exploit this vulnerability to buffer overflow.

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

No patch listed yet 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 12, 2026

Buffer overflow in UTT HiPER 810G firmware versions up to 1.7.7-171114 allows authenticated remote attackers to achieve code execution by supplying an oversized GroupName parameter to the /goform/formPolicyRouteConf endpoint. Public exploit code exists for this vulnerability and no patch is currently available.

Earlier versions of this analysis (1)

v1 Mar 12, 2026 - 21:55 CVSS 8.8

A vulnerability was determined in UTT HiPER 810G up to 1.7.7-171114. Impacted is the function strcpy of the file /goform/formPolicyRouteConf. [CVSS 8.8 HIGH]

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.

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-119 (Buffer Overflow). Affects 810G Firmware. A vulnerability was determined in UTT HiPER 810G up to 1.7.7-171114. Impacted is the function strcpy of the file /goform/formPolicyRouteConf. Executing a manipulation of the argument GroupName can lead to buffer overflow. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized.

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Exploit and PoC references, threat intelligence from 22 sources

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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

PoC Detected

Feb 24, 2026 - 20:02 vuln.today

Public exploit code

CVE Published

Feb 23, 2026 - 16:29 nvd

HIGH 8.8

DescriptionCVE.org

A vulnerability was determined in UTT HiPER 810G up to 1.7.7-171114. Impacted is the function strcpy of the file /goform/formPolicyRouteConf. Executing a manipulation of the argument GroupName can lead to buffer overflow. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized.

Executive ViewAI

Why It Matters

A critical buffer overflow vulnerability in UTT HiPER 810G devices (versions up to 1.7.7-171114) allows remote attackers to execute arbitrary code with a CVSS score of 8.8. Organizations using affected devices face immediate risk of system compromise, data breach, and network infrastructure takeover, particularly given that public exploits exist and no vendor patch is currently available.

Business Impact: Severe

Compensating Controls

Implement network segmentation to restrict access to affected devices; deploy Web Application Firewall (WAF) with rules blocking POST requests to /goform/formPolicyRouteConf; disable remote management interfaces and restrict to local administration only; implement IP whitelisting for legitimate management access; enable enhanced logging and SIEM alerting on the affected endpoint; consider device replacement if vendor does not provide patch within 30 days.

Threat Intelligence Overview

EPSS Score

0.1%

Top 77% 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 0.1%

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.

SSVC AssessmentENISA

SSVC Decision· derived

Out-of-Cycle

Exploitation· derived

Poc

System Exposure· derived

Open

Automatable· derived

Human Impact

Very High

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +44

PoC: +20

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Buffer Overflow HIGH

A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.