CVE-2024-8575Public exploitNetwork attack vector

Authenticated memory corruption via unchecked desc copy

Published Sep 8, 2024 · Updated Sep 9, 2024

Buffer overflow in TOTOLINK T8 firmware 4.1.5cu.861_B20230220 allows remote authenticated users to corrupt memory via a crafted request. The setWiFiScheduleCfg handler in /cgi-bin/cstecgi.cgi passes the attacker-controlled desc POST parameter to strcpy without checking the destination buffer size. A valid session cookie is required; successful triggering can corrupt the router process, with confidentiality, integrity, and availability consequences.

CVSS severity8.7
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 firmware 4.1.5cu.861_B20230220 allows remote authenticated users to corrupt memory via a crafted request. The setWiFiScheduleCfg handler in /cgi-bin/cstecgi.cgi passes the attacker-controlled desc POST parameter to strcpy without checking the destination buffer size. A valid session cookie is required; successful triggering can corrupt the router process, with confidentiality, integrity, and availability consequences.

The record

CVE
CVE-2024-8575
Published
Sep 8, 2024
Updated
Sep 9, 2024
Vendor
TOTOLINK
Product
T8
Classifications
CWE-120, T1190
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

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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')
T1190Exploit Public-Facing Application

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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