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An issue in X-Serie Gateway Firmware V6_00_05 allows a remote attacker to escalate privileges via the endpoints /cgi-bin/wwwugw.cgi and… (CVE-2026-75160)

0
Critical
Published: 09/04/2026 (09/04/2026, 18:31:21 UTC)
Source: GCVE Database

Description

A critical vulnerability exists in X-Serie Gateway Firmware V6_00_05 that allows remote attackers to escalate privileges via the endpoints /cgi-bin/wwwugw.cgi and /cgi-bin/ugwdownload.cgi. This flaw enables unauthorized users to gain higher access rights without authentication. The vulnerability has a CVSS score of 9.1, indicating high impact on confidentiality and integrity. No patch or remediation information is currently available.

CVSS v3.1

Score 9.1critical

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 09/07/2026, 10:37:32 UTC

Technical Analysis

CVE-2026-75160 describes a privilege escalation vulnerability in X-Serie Gateway Firmware version V6_00_05. Remote attackers can exploit the endpoints /cgi-bin/wwwugw.cgi and /cgi-bin/ugwdownload.cgi to escalate privileges without prior authentication. The vulnerability is classified under CWE-269 (Improper Privilege Management) and has a CVSS 3.1 base score of 9.1, reflecting network attack vector, low attack complexity, no privileges required, no user interaction, and high impact on confidentiality and integrity. There is no information about available patches or fixes at this time.

Potential Impact

Successful exploitation allows remote attackers to escalate privileges on the affected device, potentially leading to unauthorized access to sensitive information and control over the system. The confidentiality and integrity of the system are highly impacted, while availability is not affected according to the CVSS vector.

Mitigation Recommendations

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict network access to the affected endpoints and monitor for suspicious activity related to these CGI scripts.

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Technical Details

Gcve Source
db.gcve.eu
Osv Id
GHSA-qqg2-xvr7-83hv
Osv Schema Version
1.4.0
Aliases
["CVE-2026-75160"]
Database Specific Severity
CRITICAL
Cvss Version
3.1
State
PUBLISHED

Threat ID: 6a9c263aacd9273b49fc9979

Added to database: 09/05/2026, 14:24:58 UTC

Last enriched: 09/07/2026, 10:37:32 UTC

Last updated: 10/19/2026, 06:48:19 UTC

Views: 37

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