A vulnerability was determined in Totolink WA300 5.2cu.7112_B20190227. Affected by this issue is the function recvUpgradeNewFw of the file /cgi-bin/cstecgi.cgi. This manipulation causes os command injection. Remote exploitation of the attack is possible. The exploit has been publicly disclosed and may be utilized.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Totolink WA300 affected
Version Status Constraints
5.2cu.7112_B20190227 affected —

No data.

No data.

No data.

Project Subscriptions

Vendors Products
Totolink Subscribe
Wa300 Firmware Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/hellonestor/killallbug/issues/1 cve-icon cve-icon
https://github.com/user-attachments/files/25790616/Unauthenticated.Remote.Code.Execution.in.TOTOLINK.WA300.via.Command.Injection.in.recvUpgradeNewFw.zip cve-icon cve-icon
https://vuldb.com/?ctiid.352046 cve-icon cve-icon
https://vuldb.com/?id.352046 cve-icon cve-icon
https://vuldb.com/?submit.773875 cve-icon cve-icon
https://www.totolink.net/ cve-icon cve-icon
History

Fri, 20 Mar 2026 19:15:00 +0000

Type Values Removed Values Added
Description A vulnerability was determined in Totolink WA300 5.2cu.7112_B20190227. Affected by this issue is the function recvUpgradeNewFw of the file /cgi-bin/cstecgi.cgi. This manipulation causes os command injection. Remote exploitation of the attack is possible. The exploit has been publicly disclosed and may be utilized.
Title Totolink WA300 cstecgi.cgi recvUpgradeNewFw os command injection
First Time appeared Totolink
Totolink wa300 Firmware
Weaknesses CWE-77
CWE-78
CPEs cpe:2.3:o:totolink:wa300_firmware:*:*:*:*:*:*:*:*
Vendors & Products Totolink
Totolink wa300 Firmware
References
Metrics cvssV2_0

{'score': 7.5, 'vector': 'AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 7.3, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 7.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P'}

Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-03-20T19:02:12.950Z

Reserved: 2026-03-20T09:21:26.000Z

Link: CVE-2026-4497

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-03-20T19:16:20.533

Modified: 2026-03-20T19:16:20.533

Link: CVE-2026-4497

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses