CVE-2024-8576Public exploitNetwork attack vector

Memory corruption via unchecked desc field

Published Sep 8, 2024 · Updated Sep 10, 2024

Buffer overflow in cstecgi.cgi in TOTOLINK AC1200 T8 and AC1200 T10 firmware allows remote authenticated users to corrupt memory. The setIpPortFilterRules function copies an overlong desc field without enforcing the destination buffer size, overflowing the CGI process memory. Access to the router management interface with low privileges is required; published evidence does not establish whether exploitation causes a crash or 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 cstecgi.cgi in TOTOLINK AC1200 T8 and AC1200 T10 firmware allows remote authenticated users to corrupt memory. The setIpPortFilterRules function copies an overlong desc field without enforcing the destination buffer size, overflowing the CGI process memory. Access to the router management interface with low privileges is required; published evidence does not establish whether exploitation causes a crash or code execution.

The record

CVE
CVE-2024-8576
Published
Sep 8, 2024
Updated
Sep 10, 2024
Vendor
TOTOLINK
Product
T10
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 10, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

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
  3. Affected versionversion=4.1.8cu.5207

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

TOTOLINK · T10version=4.1.5cu.861_b20230220; version=4.1.5cu.861_B20230220; version=4.1.8cu.5207
TOTOLINK · T8version=4.1.5cu.861_b20230220; version=4.1.5cu.861_B20230220; version=4.1.8cu.5207

Published CVSS scores

8.8NISTCVSS: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.

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

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')
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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