CVE-2026-9531 | THREATINT

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Description

A weakness has been identified in Totolink CA750-PoE 6.2c.510. Impacted is the function setUpgradeUboot of the file /cgi-bin/cstecgi.cgi of the component Setting Handler. This manipulation of the argument FileName causes os command injection. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks.

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/365558 (VDB-365558 | Totolink CA750-PoE Setting cstecgi.cgi setUpgradeUboot os command injection) vdb-entry technical-description

vuldb.com/vuln/365558/cti (VDB-365558 | CTI Indicators (IOB, IOC, TTP, IOA)) signature permissions-required

vuldb.com/submit/813929 (Submit #813929 | TOTOLink CA750-PoE V6.2c.510 Command Injection) third-party-advisory

github.com/wudipjq/my_vuln/blob/main/totolink4/vuln_54/54.md exploit

www.totolink.net/ product

cve.org (CVE-2026-9531)

nvd.nist.gov (CVE-2026-9531)

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