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Lr350 Firmware CVE-2026-1158

HIGH
Buffer Overflow (CWE-119)
2026-01-19 cna@vuldb.com
Buffer Overflow Lr350 Firmware
8.8
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
8.8 HIGH
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

3
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
PoC Detected
Jan 29, 2026 - 18:34 vuln.today
Public exploit code
CVE Published
Jan 19, 2026 - 15:15 nvd
HIGH 8.8

DescriptionCVE.org

A security flaw has been discovered in Totolink LR350 9.3.5u.6369_B20220309. This vulnerability affects 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 can be initiated remotely. The exploit has been released to the public and may be used for attacks.

AnalysisAI

Buffer overflow in Totolik LR350 firmware allows authenticated remote attackers to achieve full system compromise through malicious SSID parameters in the wizard configuration endpoint. Public exploit code is available for this vulnerability, and no patch has been released, leaving deployed devices at immediate risk. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Authenticate to Totolink LR350 web interface
Delivery
Send POST request to /cgi-bin/cstecgi.cgi
Exploit
Manipulate ssid parameter with oversized payload
Execution
Trigger buffer overflow in setWizardCfg function
Impact
Execute arbitrary code with device privileges
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Vulnerability AssessmentAI

Exploitation Totolik LR350 firmware version 9.3.5u.6369_B20220309 with web management interface enabled. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment CVSS 8.8 (HIGH). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario A remote attacker could exploit this flaw, buffer overflow.
Remediation Monitor vendor advisories for a patch. … Detailed patch versions, workarounds, and compensating controls in full report.
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Recommended ActionAI

Within 7 days: Identify all affected systems and apply vendor patches promptly. …

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CVE-2026-1158 vulnerability details – vuln.today
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