What is the CVSS score of CVE-2026-3814?

CVE-2026-3814 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%.

Which versions of 810g Firmware are affected by CVE-2026-3814?

A critical buffer overflow vulnerability (CVE-2026-3814) affects UTT HiPER 810G devices up to version 1.7.7-1711, allowing unauthenticated attackers to execute arbitrary code with a high CVSS score…

Is there a public PoC exploit available for CVE-2026-3814?

Yes, a public proof-of-concept exploit is available for CVE-2026-3814. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2026-3814?

Within 24 hours: Identify and inventory all UTT HiPER 810G devices in your environment and isolate them from production networks if possible. Within 7 days: Implement network segmentation to restrict access to affected devices, deploy WAF rules blocking requests to /goform/getOneApConfTempEntry, and disable remote management interfaces where feasible. Within 30 days: Contact UTT for patch availability or replacement device options; escalate to vendor for emergency security update timeline.

810g Firmware CVE-2026-3814

HIGH

Buffer Overflow (CWE-119)

2026-03-09 cna@vuldb.com

Buffer Overflow 810g Firmware

8.8

CVSS 3.1 · NVD

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

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:56 vuln.today

PoC Detected

Mar 10, 2026 - 14:28 vuln.today

Public exploit code

CVE Published

Mar 09, 2026 - 10:16 nvd

HIGH 8.8

DescriptionCVE.org

A security flaw has been discovered in UTT HiPER 810G up to 1.7.7-1711. Affected by this issue is the function strcpy of the file /goform/getOneApConfTempEntry. Performing a manipulation results in buffer overflow. It is possible to initiate the attack remotely. The exploit has been released to the public and may be used for attacks.

AnalysisAI

Unauthenticated remote attackers can achieve complete system compromise (code execution, data theft, and denial of service) against UTT HiPER 810G firmware versions up to 1.7.7-1711 through a buffer overflow in the /goform/getOneApConfTempEntry endpoint. Public exploit code is available and actively being leveraged in attacks. No patch is currently available for affected devices.

Technical ContextAI

Classified as CWE-119 (Buffer Overflow). Affects 810G Firmware. A security flaw has been discovered in UTT HiPER 810G up to 1.7.7-1711. Affected by this issue is the function strcpy of the file /goform/getOneApConfTempEntry. Performing a manipulation results in buffer overflow. It is possible to initiate the attack remotely. The exploit has been released to the public and may be used for attacks.

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.