CVE-2024-7463

CRITICAL

A vulnerability classified as critical was found in TOTOLINK CP900 6.3c.566. This vulnerability affects the function UploadCustomModule of the file /cgi-bin/cstecgi.cgi. The manipulation of the arg...

Affects 2 products across 1 vendor.

CVSS 3.19.8
CVSS v48.7
EPSS11.0%
Percentile96th
PatchUnknown
CVSS Vector — Plain English Remotely exploitable over the network, low complexity, no authentication required, no user interaction needed, impact contained to the vulnerable component, full confidentiality impact, full integrity impact, full availability impact.
CWE Weakness Definitions
CWE-120: Buffer Copy without Checking Size (Classic Buffer Overflow)

Program copies data to a buffer without verifying the source data fits within the destination.

Related Attack Patterns (CAPEC)
CAPEC-8 Buffer Overflow in an API Call
via CWE-120
CAPEC-9 Buffer Overflow in Local Command-Line Utilities
via CWE-120
CAPEC-10 Buffer Overflow via Environment Variables
via CWE-120
CAPEC-14 Client-side Injection-induced Buffer Overflow
via CWE-120
CAPEC-24 Filter Failure through Buffer Overflow
via CWE-120
Show all 13

Mapping is CWE-to-CAPEC per MITRE CAPEC 3.9.

◆ AI Analysis — automated analysis, not human-reviewed

A critical vulnerability (CVE-2024-7463) in TOTOLINK CP900 6.3c.566 allows remote attackers to exploit a buffer overflow in the UploadCustomModule function of the /cgi-bin/cstecgi.cgi file through manipulation of the File argument.

BSID: BS-2024-GLOBAL-225527-C • Model: /workspace/models/qwen2.5-coder-32b-instruct-bf16 • Confidence: HIGH

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Frequently Asked Questions
What is CVE-2024-7463?
A critical vulnerability (CVE-2024-7463) in TOTOLINK CP900 6.3c.566 allows remote attackers to exploit a buffer overflow in the UploadCustomModule function of the /cgi-bin/cstecgi.cgi file through manipulation of the File argument.
What is the CVSS score for CVE-2024-7463?
CVE-2024-7463 has CVSS 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS: 11.0%.
Is CVE-2024-7463 actively exploited?
No confirmed active exploitation of CVE-2024-7463 as of 2026-09-25.
How do I remediate CVE-2024-7463?
Priority: IMMEDIATE.
What systems are affected by CVE-2024-7463?
CVE-2024-7463 affects Totolink Cp900.
Vulnerability Details
CVE IDCVE-2024-7463
BSIDBS-2024-GLOBAL-225527-C BreachSpider Global ID
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published2024-08-05
Last Modified2026-06-17
ICS Relevance15%
Weakness (CWE)
Buffer Copy without Checking Size (Classic Buffer Overflow)
SourceNVD
Official Description

A vulnerability classified as critical was found in TOTOLINK CP900 6.3c.566. This vulnerability affects the function UploadCustomModule of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument File leads to buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-273556. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Source: NIST NVD / MITRE CVE Database

Attack Vector Analysis — CITED Relevance

The vulnerability can be exploited remotely by manipulating the File argument in the UploadCustomModule function, leading to a buffer overflow. The exploit has been publicly disclosed and may be used by attackers.

Exploitation Likelihood: CRITICAL

Affected Products
VendorProductAffected Versions
Totolink Cp900 (device & firmware) 6.3c.566
Remediation

No official vendor advisory link on record. See the CVE record →

Threat Intelligence
● Threat Intelligence Validated: October 2026 | Threat Age: 802 Days
CISA known-exploitedNot in KEV catalog
Public ExploitNot confirmed
PoC CodeNot confirmed
AI Enrichment Record — provenance & audit hash
Model/workspace/models/qwen2.5-coder-32b-instruct-bf16
ConfidenceHIGH
Enriched At2026-05-24
SHA-512 Audit Hashf9816fa4bac553fb635be18b65c4d2835cc615cc0358dcf2ec2daa639f2915ce7d68f7b1be9a4d3130461685f70e5f25625403bce78325490634884bb856f5b7
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