CVE-2026-4558 | THREATINT

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Description

A flaw has been found in Linksys MR9600 2.0.6.206937. Affected is the function smartConnectConfigure of the file SmartConnect.lua. Executing a manipulation of the argument configApSsid/configApPassphrase/srpLogin/srpPassword can lead to os command injection. The attack may be launched remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

PUBLISHED Reserved 2026-03-21 | Published 2026-03-22 | Updated 2026-03-22 | Assigner VulDB

HIGH: 8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P

HIGH: 8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

HIGH: 8.8CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

9.0AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR

Problem types

OS Command Injection

Command Injection

Product status

2.0.6.206937
affected

Timeline

2026-03-21:	Advisory disclosed
2026-03-21:	VulDB entry created
2026-03-21:	VulDB entry last update

Credits

wuuu (VulDB User) reporter

VulDB coordinator

References

vuldb.com/?id.352385 (VDB-352385 | Linksys MR9600 SmartConnect.lua smartConnectConfigure os command injection) vdb-entry technical-description

vuldb.com/?ctiid.352385 (VDB-352385 | CTI Indicators (IOB, IOC, TTP, IOA)) signature permissions-required

vuldb.com/?submit.775036 (Submit #775036 | Linksys MR9600 firmware 2.0.6.206937 OS Command Injection) third-party-advisory

github.com/utmost3/cve/issues/1 exploit issue-tracking

www.linksys.com/ product

cve.org (CVE-2026-4558)

nvd.nist.gov (CVE-2026-4558)

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