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CVE-2026-1155

Totolink LR350 cstecgi.cgi setWiFiEasyGuestCfg buffer overflow

HIGH
8.8
CVSS Score
Published: January 19, 2026 at 01:02 PM UTC
Updated: June 17, 2026 at 10:15 AM UTC
2 products affected across 1 vendorLR350LR350 Firmware

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Severity
HIGH8.8
Exploit prediction
EPSS 0.9%
SSVC
PoC

Description

A vulnerability was found in Totolink LR350 9.3.5u.6369_B20220309. Affected by this vulnerability is the function setWiFiEasyGuestCfg of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument ssid results in buffer overflow. The attack may be performed from remote. The exploit has been made public and could be used.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (5)

ExploitThird Party Advisory
Source: [email protected]
https://lavender-bicycle-a5a.notion.site/TOTOLINK-LR350-setWiFiEasyGuestCfg-2e453a41781f8034bae3d1a11066a8fb?source=copy_link
SignaturePermissions RequiredVDB Entry
Source: [email protected]
https://vuldb.com/?ctiid.341749
VDB EntryTechnical DescriptionThird Party Advisory
Source: [email protected]
https://vuldb.com/?id.341749
Third Party AdvisoryVDB Entry
Source: [email protected]
https://vuldb.com/?submit.735718
Product
Source: [email protected]
https://www.totolink.net/

SSVC — Action Prioritization

SSVCPoCNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGHVulDB
Vector?

Quick Info

StatusANALYZED
CWE
CWE-119CWE-120

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