CVE-2026-9533 | THREATINT

Description

A vulnerability was detected in Totolink CA750-PoE 6.2c.510. The impacted element is the function recvUpgradeNewFw of the file /cgi-bin/cstecgi.cgi of the component Setting Handler. Performing a manipulation of the argument fwUrl/magicid results in os command injection. It is possible to initiate the attack remotely. The exploit is now public and may be used.

PUBLISHED Reserved 2026-05-25 | Published 2026-05-26 | Updated 2026-05-26 | Assigner VulDB

MEDIUM: 5.3CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

MEDIUM: 6.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

MEDIUM: 6.3CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

6.5AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR

Problem types

OS Command Injection

Command Injection

Product status

6.2c.510

affected

Timeline

2026-05-25:	Advisory disclosed
2026-05-25:	VulDB entry created
2026-05-25:	VulDB entry last update

Credits

Buoy_yes (VulDB User) reporter

References

vuldb.com/vuln/365560 (VDB-365560 | Totolink CA750-PoE Setting cstecgi.cgi recvUpgradeNewFw os command injection) vdb-entry technical-description

vuldb.com/vuln/365560/cti (VDB-365560 | CTI Indicators (IOB, IOC, TTP, IOA)) signature permissions-required

vuldb.com/submit/813937 (Submit #813937 | TOTOLink CA750-PoE V6.2c.510 Command Injection) third-party-advisory

github.com/wudipjq/my_vuln/blob/main/totolink4/vuln_56/56.md exploit

www.totolink.net/ product

cve.org (CVE-2026-9533)

nvd.nist.gov (CVE-2026-9533)

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