High severity7.2NVD Advisory· Published Feb 20, 2026· Updated Jun 17, 2026

CVE-2026-2847

Description

A vulnerability was detected in UTT HiPER 520 1.7.7-160105. Affected is the function sub_44EFB4 of the file /goform/formReleaseConnect of the component Web Management Interface. The manipulation of the argument Isp_Name results in os command injection. The attack can be launched remotely. The exploit is now public and may be used.

Affected products

Utt/520 Firmware
cpe:2.3:o:utt:520_firmware:1.7.7-160105:*:*:*:*:*:*:*
Utt/HiPER 520llm-fuzzy2 versions
1.7.7-160105+ 1 more
- (no CPE)range: 1.7.7-160105
- (no CPE)range: 1.7.7-160105

Patches

Vulnerability mechanics

References

github.com/cha0yang1/UTT520CVE/blob/main/UTTRCE2.mdnvdExploitThird Party Advisory
vuldb.comnvdThird Party AdvisoryVDB Entry
vuldb.comnvdThird Party AdvisoryVDB Entry
vuldb.comnvdPermissions RequiredVDB Entry

News mentions

No linked articles in our index yet.

Severity

HighCVSS v3.1

7.2/ 10

CVSS v47.3

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/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
Complexity: Low
Privileges: High
User interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: High
Availability: High

Vector

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

EPSS

Probability of exploitation in the next 30 days.

9.23%

VYPR risk score

Composite of severity, exploitation, and reach.

0.48medium

cvss	0.468
epss	0.007
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000

Weaknesses

CWE-77
Improper Neutralization of Special Elements used in a Command ('Command Injection')
CWE-78
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

CVE ID

CVE-2026-2847

Credits

R(
Ruler-Chovy (VulDB User)
reporter