CVE-2026-1156

HIGH
2026-01-19 [email protected]
8.8
CVSS 3.1
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CVSS Vector

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 - 18:40 vuln.today
Public exploit code
CVE Published
Jan 19, 2026 - 14:15 nvd
HIGH 8.8

Tags

Buffer Overflow Lr350 Firmware

Description

A vulnerability was determined in Totolink LR350 9.3.5u.6369_B20220309. Affected by this issue is the function setWiFiBasicCfg of the file /cgi-bin/cstecgi.cgi. This manipulation of the argument ssid causes buffer overflow. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized.

Analysis

Unauthenticated remote attackers can exploit a buffer overflow in the WiFi configuration function of Totolink LR350 firmware version 9.3.5u.6369_B20220309 to achieve remote code execution with full system compromise. The vulnerability exists in the ssid parameter handler of /cgi-bin/cstecgi.cgi and requires only network access to trigger, with public exploit code already available. …

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Remediation

Within 7 days: Identify all affected systems and apply vendor patches promptly. Monitor vendor channels for patch availability.

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Priority Score

64
Low Medium High Critical
KEV: 0
EPSS: +0.1
CVSS: +44
POC: +20

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CVE-2026-1156 vulnerability details – vuln.today
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