Which versions of UTT HiPER are affected by CVE-2026-9631?

UTT HiPER 1250GW routers with firmware through version 3.2.7-210907-180535 contain a buffer overflow vulnerability allowing authenticated remote attackers to execute code or crash the device.

How to fix or mitigate CVE-2026-9631?

Within 24 hours: Identify and inventory all UTT HiPER 1250GW routers with firmware ≤3.2.7-210907-180535; restrict administrative access to the web management interface via firewall rules. Within 7 days: Verify no patch is available from UTT and assess device replacement timeline; implement network segmentation to isolate management traffic. Within 30 days: Deploy IP whitelisting for management access, enable detailed audit logging, and establish monitoring for unauthorized access attempts.

UTT HiPER CVE-2026-9631

Q: What is the CVSS score of CVE-2026-9631?

CVE-2026-9631 has a CVSS 4.0 base score of 7.4 (High). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. EPSS exploitation probability: 0.0%.

EUVD-2026-32032 HIGH

Buffer Overflow (CWE-119)

2026-05-27 cna@vuldb.com

GHSA-rw9v-f8p5-m34c

Buffer Overflow

7.4

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

7.4 HIGH

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Lifecycle Timeline

Analysis Generated

May 27, 2026 - 20:40 vuln.today

DescriptionCVE.org

A vulnerability was detected in UTT HiPER 1250GW up to 3.2.7-210907-180535. Affected by this vulnerability is the function strcpy of the file /goform/formConfigFastDirectionW of the component Web Management Interface. Performing a manipulation of the argument Profile results in stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit is now public and may be used.

AnalysisAI

Stack-based buffer overflow in the web management interface of the UTT HiPER 1250GW router (firmware through 3.2.7-210907-180535) lets a remote, low-privileged attacker corrupt memory by submitting an oversized Profile value to the /goform/formConfigFastDirectionW handler, which passes it to an unbounded strcpy. The CVSS 4.0 vector rates confidentiality, integrity, and availability impact as High, consistent with potential code execution or device crash. Publicly available exploit code exists per the VulDB submission, though EPSS is very low (0.04%, 13th percentile) and there is no public exploit identified as actively exploited.