CVE-2024-8578Public exploitNetwork attack vector

Authenticated router crash via oversized mesh name

Published Sep 8, 2024 · Updated Sep 9, 2024

Buffer overflow in TOTOLINK T8 4.1.5cu.861_B20230220 allows remote authenticated users to crash the router via device_name. The setWiFiMeshName handler in /cgi-bin/cstecgi.cgi accepts an oversized device_name value, but the public report does not disclose the copy operation or destination-buffer size. Low-privileged management access is required; the demonstrated consequence is denial of service, not confirmed code execution.

CVSS severity8.8
High
EPSS probability1.09%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overflow in TOTOLINK T8 4.1.5cu.861_B20230220 allows remote authenticated users to crash the router via device_name. The setWiFiMeshName handler in /cgi-bin/cstecgi.cgi accepts an oversized device_name value, but the public report does not disclose the copy operation or destination-buffer size. Low-privileged management access is required; the demonstrated consequence is denial of service, not confirmed code execution.

The record

CVE
CVE-2024-8578
Published
Sep 8, 2024
Updated
Sep 9, 2024
Vendor
TOTOLINK
Product
T8
Classifications
CWE-120, T1499.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 8, 2024CVE publishedPublication date reported by the CVE source.
  2. Sep 9, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=4.1.5cu.861_b20230220
  2. Affected versionversion=4.1.5cu.861_B20230220

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

TOTOLINK · T8version=4.1.5cu.861_b20230220; version=4.1.5cu.861_B20230220

Published CVSS scores

8.8NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
9.0VulDBAV:N/AC:L/Au:S/C:C/I:C/A:C
8.7VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
8.8VulDBCVSS:3.1/AV:N/AC:L/PR:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
T1499.004Application or System Exploitation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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