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Description

A vulnerability was detected in Totolink NR1800X 9.1.0u.6279_B20210910. Impacted is the function setWizardCfg of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. Performing a manipulation of the argument ssid results in buffer overflow. The attack may be initiated remotely. The exploit is now public and may be used.

PUBLISHED Reserved 2026-01-22 | Published 2026-01-22 | Updated 2026-01-22 | 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

Buffer Overflow

Memory Corruption

Product status

9.1.0u.6279_B20210910
affected

Timeline

2026-01-22:Advisory disclosed
2026-01-22:VulDB entry created
2026-01-22:VulDB entry last update

Credits

yhryhryhr_mie (VulDB User) reporter

References

vuldb.com/?id.342304 (VDB-342304 | Totolink NR1800X POST Request cstecgi.cgi setWizardCfg buffer overflow) vdb-entry technical-description

vuldb.com/?ctiid.342304 (VDB-342304 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/?submit.735792 (Submit #735792 | TOTOLINK NR1800X NR1800X_Firmware V9.1.0u.6279_B20210910 Buffer Overflow) third-party-advisory

lavender-bicycle-a5a.notion.site/...082fbe9?source=copy_link exploit

www.totolink.net/ product

cve.org (CVE-2026-1328)

nvd.nist.gov (CVE-2026-1328)

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