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Lr350 Firmware CVE-2026-1157

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 - 18:36 vuln.today
Public exploit code
CVE Published
Jan 19, 2026 - 14:15 nvd
HIGH 8.8

DescriptionCVE.org

A vulnerability was identified in Totolink LR350 9.3.5u.6369_B20220309. This affects the function setWiFiEasyCfg of the file /cgi-bin/cstecgi.cgi. Such manipulation of the argument ssid leads to buffer overflow. It is possible to launch the attack remotely. The exploit is publicly available and might be used.

AnalysisAI

Stack-based buffer overflow in Totolink LR350 firmware (version 9.3.5u.6369_B20220309) allows authenticated remote attackers to achieve complete system compromise through manipulation of the ssid parameter in the WiFi configuration function. Public exploit code is available and no patch has been released, leaving affected devices vulnerable to active exploitation. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Authenticate to device web interface
Delivery
Send crafted HTTP request to /cgi-bin/cstecgi.cgi
Exploit
Inject oversized SSID parameter
Execution
Trigger buffer overflow in setWiFiEasyCfg
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 interface accessible; attacker requires valid user credentials for authentication to POST to /cgi-bin/cstecgi.cgi setWiFiEasyCfg function. 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-2026-1157 vulnerability details – vuln.today
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