Buffer Overflow Vulnerability in Totolink LR350 Router
CVE-2026-1158

8.7HIGH

Key Information:

Vendor

Totolink
Status
Lr350
Vendor
CVE Published:
19 January 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-1158?

A security flaw exists in the Totolink LR350 router, particularly in the function setWizardCfg within the POST Request Handler component. This vulnerability allows for remote exploitation through a manipulated argument, leading to a buffer overflow. As a result, attackers can potentially compromise the device's integrity. The flaw has been publicly disclosed, highlighting its significance in the realm of cybersecurity, necessitating prompt attention from affected users.

Human OS v1.0:
Ageing Is an Unpatched Zero-Day Vulnerability.

Remediate biological technical debt. Prime Ageing uses 95% high-purity SIRT6 activation to maintain genomic integrity and bolster systemic resilience.

Deploy the Patch

Affected Version(s)

LR350 9.3.5u.6369_B20220309

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-1158 - Proof of Concept

References

https://vuldb.com/?id.341752
vdb-entrytechnical-description
https://vuldb.com/?ctiid.341752
signaturepermissions-required
https://vuldb.com/?submit.735728
third-party-advisory

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

yhryhryhr_tu (VulDB User)
JSON
.