CVE-2026-2847 Details
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.
A critical OS command injection vulnerability has been identified in the UTT HiPER 520 router, specifically in the Web Management Interface. This vulnerability affects version 1.7.7-160105 and is located in the 'sub_44EFB4' function of the 'rehttpd' binary. The issue arises when the application retrieves the 'Isp_Name' parameter through 'websGetVar'. Although there is an attempt to sanitize the input by converting it to an integer, the original unsanitized string pointer is used in a subsequent 'doSystem' call, allowing authenticated attackers to inject arbitrary shell commands. The vulnerability can be exploited remotely, and an available proof-of-concept demonstrates the execution of injected commands with root privileges.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Feb 24, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/cha0yang1/UTT520CVE/blob/main/UTTRCE2.md | [email protected] | ExploitThird Party Advisory |
| https://vuldb.com/?ctiid.347083 | [email protected] | Permissions RequiredVDB Entry |
| https://vuldb.com/?id.347083 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/?submit.753965 | [email protected] | Third Party AdvisoryVDB Entry |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-77 | Improper Neutralization of Special Elements used in a Command ('Command Injection') | [email protected] |
| CWE-78 | Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| utt 520 firmware | 1.7.7-160105 |
CPE
Remediation
| |
| utt 520 | 3.0 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Feb 24, 2026 | Initial Analysis | [email protected] |
| Feb 20, 2026 | New CVE Received | [email protected] |