CVE-2026-5030 | Totolink NR1800X 9.1.0u.6279_B20210910 Telnet Service /cgi-bin/cstecgi.cgi NTPSyncWithHost host_time command injection

VDB-353952 · CVE-2026-5030 · GCVE-100-353952 TOTOLINK NR1800X 9.1.0U.6279_B20210910 TELNET SERVICE /CGI-BIN/CSTECGI.CGI NTPSYNCWITHHOST HOST_TIME COMMAND INJECTION HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 5.7 $0-$5k 1.96 Summaryinfo A vulnerability was found in Totolink NR1800X 9.1.0u.6279_B20210910 and classified as critical. Impacted is the function NTPSyncWithHost of the file /cgi-bin/cstecgi.cgi of the component Telnet Service. The manipulation of the argument host_time results in command injection. This vulnerability is reported as CVE-2026-5030. The attack can be launched remotely. Moreover, an exploit is present. Detailsinfo A vulnerability classified as critical has been found in Totolink NR1800X 9.1.0u.6279_B20210910. Affected is the function NTPSyncWithHost of the file /cgi-bin/cstecgi.cgi of the component Telnet Service. The manipulation of the argument host_time 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. The advisory is shared for download at lavender-bicycle-a5a.notion.site. This vulnerability is traded as CVE-2026-5030. The exploitability is told to be easy. It is possible to launch the attack remotely. Technical details and a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1202. The exploit is shared for download at lavender-bicycle-a5a.notion.site. 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 NR1800X Version 9.1.0u.6279_B20210910 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: 5.7 VulDB Base Score: 6.3 VulDB Temp Score: 5.7 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: 🔒 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 03/27/2026 Advisory disclosed 03/27/2026 +0 days VulDB entry created 03/27/2026 +0 days VulDB entry last update Sourcesinfo Vendor: totolink.net Advisory: lavender-bicycle-a5a.notion.site Status: Not defined CVE: CVE-2026-5030 (🔒) GCVE (CVE): GCVE-0-2026-5030 GCVE (VulDB): GCVE-100-353952 scip Labs: https://www.scip.ch/en/?labs.20161013 Entryinfo Created: 03/27/2026 17:01 Changes: 03/27/2026 17:01 (57) Complete: 🔍 Submitter: wxhwxhwxh_mie Cache ID: 99:EE5:101 Submitinfo Accepted Submit #778529: TOTOLINK NR1800X NR1800X_Firmware V9.1.0u.6279_B20210910 Command Injection (by wxhwxhwxh_mie) Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸