CVE-2024-35387Network attack vector

Unauthenticated code execution via loginAuth stack overflow

Published May 24, 2024 · Updated Feb 13, 2025

Stack-based buffer overflow in TOTOLINK LR350 9.3.5u.6369_B20220309 allows remote attackers to execute code or crash the router via login requests. The loginAuth function places the attacker-controlled http_host parameter into stack storage without enforcing the destination buffer capacity. The request needs no authentication or user interaction, and successful exploitation grants control of the router or interrupts its service.

CVSS severity9.8
Critical
EPSS probability6.07%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack-based buffer overflow in TOTOLINK LR350 9.3.5u.6369_B20220309 allows remote attackers to execute code or crash the router via login requests. The loginAuth function places the attacker-controlled http_host parameter into stack storage without enforcing the destination buffer capacity. The request needs no authentication or user interaction, and successful exploitation grants control of the router or interrupts its service.

The record

CVE
CVE-2024-35387
Published
May 24, 2024
Updated
Feb 13, 2025
Vendor
TOTOLINK
Product
LR350
Classifications
CWE-121, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 24, 2024CVE publishedPublication date reported by the CVE source.
  2. Feb 13, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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  1. Affected versionversion=9.3.5u.6369_b20220309

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

TOTOLINK · LR350version=9.3.5u.6369_b20220309

Published CVSS scores

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-121Stack-based Buffer Overflow
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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