CVE-2026-4497 | Totolink WA300 5.2cu.7112_B20190227 /cgi-bin/cstecgi.cgi recvUpgradeNewFw os command injection

VDB-352046 · CVE-2026-4497 · GCVE-100-352046 TOTOLINK WA300 5.2CU.7112_B20190227 /CGI-BIN/CSTECGI.CGI RECVUPGRADENEWFW OS COMMAND INJECTION HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 6.6 $0-$5k 2.07+ Summaryinfo A vulnerability, which was classified as critical, was found in Totolink WA300 5.2cu.7112_B20190227. This affects the function recvUpgradeNewFw of the file /cgi-bin/cstecgi.cgi. Such manipulation leads to os command injection. This vulnerability is documented as CVE-2026-4497. The attack can be executed remotely. Additionally, an exploit exists. Detailsinfo A vulnerability, which was classified as critical, has been found in Totolink WA300 5.2cu.7112_B20190227. Affected by this issue is the function recvUpgradeNewFw of the file /cgi-bin/cstecgi.cgi. The manipulation with an unknown input leads to a os command injection vulnerability. Using CWE to declare the problem leads to CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. The advisory is available at github.com. This vulnerability is handled as CVE-2026-4497. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details as well as a public exploit are known. This vulnerability is assigned to T1202 by the MITRE ATT&CK project. 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 WA300 Version 5.2cu.7112_B20190227 License commercial Website Vendor: https://www.totolink.net/ CPE 2.3info 🔒 CPE 2.2info 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 7.3 VulDB Meta Temp Score: 6.6 VulDB Base Score: 7.3 VulDB Temp Score: 6.6 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: Os command injection CWE: CWE-78 / CWE-77 / CWE-74 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 03/20/2026 Advisory disclosed 03/20/2026 +0 days VulDB entry created 03/20/2026 +0 days VulDB entry last update Sourcesinfo Vendor: totolink.net Advisory: github.com Status: Not defined CVE: CVE-2026-4497 (🔒) GCVE (CVE): GCVE-0-2026-4497 GCVE (VulDB): GCVE-100-352046 scip Labs: https://www.scip.ch/en/?labs.20161013 Entryinfo Created: 03/20/2026 10:26 Changes: 03/20/2026 10:26 (55) Complete: 🔍 Submitter: junqi Cache ID: 99:D82:101 Submitinfo Accepted Submit #773875: Totolink WA300 V5.2cu.7112_B20190227 OS Command Injection (by junqi) Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸