CVE-2026-6168 | TOTOLINK A7000R up to 9.1.0u.6115 /cgi-bin/cstecgi.cgi setWiFiEasyGuestCfg ssid5g stack-based overflow

VDB-357056 · CVE-2026-6168 · SUBMIT #357056 TOTOLINK A7000R UP TO 9.1.0U.6115 /CGI-BIN/CSTECGI.CGI SETWIFIEASYGUESTCFG SSID5G STACK-BASED OVERFLOW HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 8.0 $0-$5k 2.41+ Summaryinfo A vulnerability classified as critical was found in TOTOLINK A7000R up to 9.1.0u.6115. The impacted element is the function setWiFiEasyGuestCfg of the file /cgi-bin/cstecgi.cgi. Such manipulation of the argument ssid5g leads to stack-based overflow. This vulnerability is documented as CVE-2026-6168. The attack can be executed remotely. Additionally, an exploit exists. Detailsinfo A vulnerability was found in TOTOLINK A7000R up to 9.1.0u.6115. It has been rated as critical. Affected by this issue is the function setWiFiEasyGuestCfg of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument ssid5g with an unknown input leads to a stack-based overflow vulnerability. Using CWE to declare the problem leads to CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). Impacted is confidentiality, integrity, and availability. The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-6168. The exploitation is known to be easy. The attack may be launched remotely. Technical details as well as a public exploit are known. The exploit is available at github.com. It is declared as proof-of-concept. There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Productinfo Vendor TOTOLINK Name A7000R Version 9.1.0u.6115 License commercial Website Vendor: https://www.totolink.net/ CPE 2.3info 🔒 CPE 2.2info 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 8.8 VulDB Meta Temp Score: 8.0 VulDB Base Score: 8.8 VulDB Temp Score: 8.0 VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Stack-based overflow CWE: CWE-121 / CWE-119 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Access: Public Status: Proof-of-Concept Download: 🔒 Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: no mitigation known Status: 🔍 0-Day Time: 🔒 Timelineinfo 04/12/2026 Advisory disclosed 04/12/2026 +0 days VulDB entry created 04/12/2026 +0 days VulDB entry last update Sourcesinfo Vendor: totolink.net Advisory: github.com Status: Not defined CVE: CVE-2026-6168 (🔒) GCVE (CVE): GCVE-0-2026-6168 GCVE (VulDB): GCVE-100-357056 scip Labs: https://www.scip.ch/en/?labs.20161013 Entryinfo Created: 04/12/2026 22:54 Changes: 04/12/2026 22:54 (56) Complete: 🔍 Submitter: DLChen Cache ID: 99:73C:101 Submitinfo Accepted Submit #797193: TOTOLINK A7000R <=V9.1.0u.6115 Stack-based Buffer Overflow (by DLChen) Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸