What is the CVSS score of CVE-2026-2981?

CVE-2026-2981 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-2026-2981?

Yes, a public proof-of-concept exploit is available for CVE-2026-2981. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2026-2981?

Within 24 hours: Identify and inventory all UTT HiPER 810G devices running version 1.7.7-1711 or earlier; isolate affected devices from production networks if possible and implement network segmentation. Within 7 days: Deploy WAF rules and IDS/IPS signatures to detect exploitation attempts on the /goform/formTaskEdit_ap endpoint; disable remote management interfaces if operationally feasible. Within 30 days: Contact UTT for patch availability timeline; develop contingency plan for device replacement or firmware alternatives; conduct security assessment of potentially compromised devices.

810g Firmware CVE-2026-2981

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
Delivery

Access /goform/formTaskEdit_ap endpoint
Exploit

Send oversized txtMin2 parameter
Execution

Trigger buffer overflow 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Weakness	CWE CWE-119 OWASP Top 10:2025 A06:2021 - Vulnerable and Outdated Components ASVS 5.0 V15 - Secure Coding and Architecture Bounds checking, buffer size validation MITRE ATT&CK 2 techniques across 2 tactics: Execution,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	Requires valid login credentials to UTT HiPER 810G running firmware version 1.7.7-1711 or earlier. The vulnerable /goform/formTaskEdit_ap endpoint must be accessible and the txtMin2 parameter must accept unsanitized input to the strcpy function.
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 flaw, 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)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAIv1 – Mar 12, 2026

Remote code execution in UTT HiPER 810G firmware through version 1.7.7-1711 allows authenticated remote attackers to execute arbitrary code by exploiting a buffer overflow in the /goform/formTaskEdit_ap endpoint. An attacker can trigger the vulnerability by crafting a malicious txtMin2 parameter that overflows the strcpy function, and public exploit code exists for this flaw. No patch is currently available for affected devices.

Earlier versions of this analysis (1)

v1 Mar 12, 2026 - 21:55 CVSS 8.8

A vulnerability was found in UTT HiPER 810G up to 1.7.7-1711. The affected element is the function strcpy of the file /goform/formTaskEdit_ap. [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 found in UTT HiPER 810G up to 1.7.7-1711. The affected element is the function strcpy of the file /goform/formTaskEdit_ap. The manipulation of the argument txtMin2 results in buffer overflow. The attack may be launched remotely. The exploit has been made public and could be used.

Know when 810g Firmware gets its next vulnerability

Watch products and get an email when something new is published
Check this CVE against your own stack and servers
Exploit and PoC references, threat intelligence from 22 sources

Continue with Google Continue with GitHub

No credit card · 7-day full trial

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 - 09:17 nvd

HIGH 8.8

DescriptionCVE.org

A vulnerability was found in UTT HiPER 810G up to 1.7.7-1711. The affected element is the function strcpy of the file /goform/formTaskEdit_ap. The manipulation of the argument txtMin2 results in buffer overflow. The attack may be launched remotely. The exploit has been made public and could be used.

Executive ViewAI

Why It Matters

A critical buffer overflow vulnerability (CVE-2026-2981) affects UTT HiPER 810G access points up to version 1.7.7-1711, allowing unauthenticated attackers to execute arbitrary code with CVSS 8.8 severity. Organizations deploying these devices face immediate risk of network compromise, data exfiltration, and infrastructure takeover, particularly concerning given the absence of an available patch and the existence of public exploits.

Business Impact: Severe

Compensating Controls

Implement network segmentation to restrict access to affected devices; deploy Web Application Firewall (WAF) rules to block requests to /goform/formTaskEdit_ap endpoint; configure IDS/IPS to detect strcpy buffer overflow exploitation patterns; disable remote management and limit administrative access to trusted networks only; monitor affected devices for signs of compromise; consider temporary device replacement with alternative vendors pending patch availability.

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.