CVE-2026-31159 | Totolink A3300R 17.0.0cu.557_B20221024 Parameter /cgi-bin/cstecgi.cgi Password command injection

VDB-359160 · CVE-2026-31159 · GCVE-0-2026-31159 TOTOLINK A3300R 17.0.0CU.557_B20221024 PARAMETER /CGI-BIN/CSTECGI.CGI PASSWORD COMMAND INJECTION HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 6.1 $0-$5k 2.34+ Summaryinfo A vulnerability was found in Totolink A3300R 17.0.0cu.557_B20221024 and classified as critical. Affected is an unknown function of the file /cgi-bin/cstecgi.cgi of the component Parameter Handler. The manipulation of the argument Password results in command injection. This vulnerability is known as CVE-2026-31159. It is possible to launch the attack remotely. No exploit is available. Detailsinfo A vulnerability was found in Totolink A3300R 17.0.0cu.557_B20221024. It has been classified as critical. Affected is an unknown code of the file /cgi-bin/cstecgi.cgi of the component Parameter Handler. The manipulation of the argument password with an unknown input leads to a command injection vulnerability. CWE is classifying the issue as CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes: An issue was discovered in ToToLink A3300R firmware v17.0.0cu.557_B20221024 allowing attackers to execute arbitrary commands via the password parameter to /cgi-bin/cstecgi.cgi. The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-31159 since 03/09/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 04/23/2026). The MITRE ATT&CK project declares the attack technique as T1202. 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 A3300R Version 17.0.0cu.557_B20221024 License commercial Website Vendor: https://www.totolink.net/ CPE 2.3info 🔒 CPE 2.2info 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 6.3 VulDB Meta Temp Score: 6.1 VulDB Base Score: 6.3 VulDB Temp Score: 6.1 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: Command injection CWE: CWE-77 / CWE-74 / CWE-707 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined 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 03/09/2026 CVE reserved 04/23/2026 +44 days Advisory disclosed 04/23/2026 +0 days VulDB entry created 04/23/2026 +0 days VulDB entry last update Sourcesinfo Vendor: totolink.net Advisory: github.com Status: Not defined CVE: CVE-2026-31159 (🔒) GCVE (CVE): GCVE-0-2026-31159 GCVE (VulDB): GCVE-100-359160 Entryinfo Created: 04/23/2026 19:51 Changes: 04/23/2026 19:51 (55) Complete: 🔍 Cache ID: 99:B34:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸