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EPSS 0.6%top 51%

CVE-2026-51670: n/a

0
Critical
VulnerabilityCVE-2026-51670cvecve-2026-51670
Published: 08/31/2026 (08/31/2026, 00:00:00 UTC)
Source: CVE Database V5

Description

Incorrect access control in the getSlaveUpdate function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to query slave upgrade status and affect upgrade bookkeeping via sending a crafted POST request to /cgi-bin/cstecgi.cgi.

CVSS v3.1

Score 9.8critical

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

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 09/07/2026, 15:05:03 UTC

Technical Analysis

This vulnerability arises from improper access control in the getSlaveUpdate function of TOTOLINK T6 firmware 4.1.5cu.748_B20211015. An unauthenticated attacker can exploit this flaw by sending a specially crafted POST request to the /cgi-bin/cstecgi.cgi endpoint, enabling them to query the slave upgrade status and interfere with upgrade bookkeeping processes. The CVSS v3.1 base score is 9.8, indicating critical severity with network attack vector, no privileges required, no user interaction, and high impact on confidentiality, integrity, and availability.

Potential Impact

Successful exploitation allows unauthenticated attackers to access sensitive upgrade status information and manipulate upgrade bookkeeping, potentially disrupting device upgrade processes and compromising device integrity and availability.

Mitigation Recommendations

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary mitigation has been documented at this time.

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Technical Details

Data Version
5.2
Assigner Short Name
mitre
Date Reserved
2026-06-08T00:00:00.000Z
State
PUBLISHED

Threat ID: 6a95872cacd9273b492acd1b

Added to database: 08/31/2026, 13:52:44 UTC

Last enriched: 09/07/2026, 15:05:03 UTC

Last updated: 10/14/2026, 06:48:18 UTC

Views: 81

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