What is the CVSS score of CVE-2026-2980?

CVE-2026-2980 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: 0.1%.

Is there a public PoC exploit available for CVE-2026-2980?

Yes, a public proof-of-concept exploit is available for CVE-2026-2980. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2026-2980?

Within 24 hours: Inventory all UTT HiPER 810G devices in production and restrict network access to the /goform/setSysAdm endpoint via firewall rules. Within 7 days: Implement WAF rules to block malicious payloads targeting this endpoint and isolate affected devices to segregated network segments. Within 30 days: Contact UTT for patch availability; if unavailable, evaluate replacement with patched firmware versions or alternative vendors; conduct forensic review for signs of exploitation.

810g Firmware CVE-2026-2980

HIGH

Buffer Overflow (CWE-119)

2026-02-23 cna@vuldb.com

Buffer Overflow 810g 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 /goform/setSysAdm endpoint
Exploit

Craft oversized passwd1 parameter
Execution

Overflow strcpy buffer
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Weakness	CWE CWE-119 OWASP Top 10:2025 A06:2021 - Vulnerable and Outdated Components ASVS 5.0 V15 - Secure Coding and Architecture Bounds checking, buffer size validation MITRE ATT&CK 2 techniques across 2 tactics: Execution,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	UTT HiPER 810G firmware version 1.7.7-1711 or earlier with /goform/setSysAdm endpoint accessible. Attacker requires high-privilege authentication credentials to trigger the vulnerable passwd1 parameter in the administrative function.
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, 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 1.7.7-1711 allows remote attackers with high privileges to execute arbitrary code through the passwd1 parameter in the /goform/setSysAdm function. Public exploit code exists for this vulnerability and no patch is currently available. An authenticated attacker can leverage this flaw to achieve complete system compromise with high impact on confidentiality, integrity, and availability.

Earlier versions of this analysis (1)

v1 Mar 12, 2026 - 21:55 CVSS 7.2

A vulnerability has been found in UTT HiPER 810G up to 1.7.7-1711. Impacted is the function strcpy of the file /goform/setSysAdm. [CVSS 7.2 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 has been found in UTT HiPER 810G up to 1.7.7-1711. Impacted is the function strcpy of the file /goform/setSysAdm. The manipulation of the argument passwd1 leads to buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public 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 - 20:04 vuln.today

Public exploit code

CVE Published

Feb 23, 2026 - 09:17 nvd

HIGH 7.2

DescriptionCVE.org

A vulnerability has been found in UTT HiPER 810G up to 1.7.7-1711. Impacted is the function strcpy of the file /goform/setSysAdm. The manipulation of the argument passwd1 leads to buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.

Executive ViewAI

Why It Matters

A critical buffer overflow vulnerability in UTT HiPER 810G devices (versions up to 1.7.7-1711) allows unauthenticated attackers to execute arbitrary code and gain full system control. Organizations using these devices face immediate risk of network compromise, data theft, and operational disruption, particularly as public exploits are already available.

Business Impact: High

Compensating Controls

Implement network segmentation to restrict access to affected devices; deploy WAF rules to block POST requests to /goform/setSysAdm with suspicious payload patterns; disable remote management capabilities if not required; monitor network traffic for exploitation attempts; consider temporary device decommissioning until patch availability; implement strict input validation at network perimeter.

Threat Intelligence Overview

EPSS Score

0.1%

Top 74% 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

Scheduled

Exploitation· derived

Poc

System Exposure· derived

Open

Automatable· derived

Human Impact

High

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +36

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.