CVE-2024-7333Public exploitNetwork attack vector

Authenticated code execution via unchecked sprintf

Published Aug 1, 2024 · Updated Aug 6, 2024

Classic buffer overflow in TOTOLINK N350RT 9.3.5u.6139_B20201216 allows remote authenticated users to execute code via a crafted request. The setParentalRules handler in /cgi-bin/cstecgi.cgi passes attacker-controlled week, sTime, and eTime POST values to sprintf without checking destination bounds. The router's management interface and a valid session are required; an oversized value can corrupt process memory, enabling code execution or a crash.

CVSS severity8.7
High
EPSS probability1.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Classic buffer overflow in TOTOLINK N350RT 9.3.5u.6139_B20201216 allows remote authenticated users to execute code via a crafted request. The setParentalRules handler in /cgi-bin/cstecgi.cgi passes attacker-controlled week, sTime, and eTime POST values to sprintf without checking destination bounds. The router's management interface and a valid session are required; an oversized value can corrupt process memory, enabling code execution or a crash.

The record

CVE
CVE-2024-7333
Published
Aug 1, 2024
Updated
Aug 6, 2024
Vendor
TOTOLINK
Product
N350RT Firmware
Classifications
CWE-120, T1210
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 1, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 6, 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=9.3.5u.6139_b20201216

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

TOTOLINK · N350RT Firmwareversion=9.3.5u.6139_b20201216
TOTOLINK · N350RTversion=9.3.5u.6139_B20201216

Published CVSS scores

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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
8.8VulDBCVSS: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')
T1210Exploitation of Remote Services

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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