CVE-2024-7217Public exploitNetwork attack vector

Authenticated code execution via unbounded password decoding

Published Jul 30, 2024 · Updated Aug 1, 2024

Buffer overflow in TOTOLINK CA300-PoE 6.2c.884 allows remote authenticated users to crash the device or execute code via a crafted password. The loginauth function in /cgi-bin/cstecgi.cgi passes the password POST value to passwordTrans, which copies decoded bytes without bounding the destination buffer. A valid session cookie is required; the public proof of concept sends an oversized password to the loginAuth topic.

CVSS severity8.8
High
EPSS probability6.76%
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 CA300-PoE 6.2c.884 allows remote authenticated users to crash the device or execute code via a crafted password. The loginauth function in /cgi-bin/cstecgi.cgi passes the password POST value to passwordTrans, which copies decoded bytes without bounding the destination buffer. A valid session cookie is required; the public proof of concept sends an oversized password to the loginAuth topic.

The record

CVE
CVE-2024-7217
Published
Jul 30, 2024
Updated
Aug 1, 2024
Vendor
TOTOLINK
Product
CA300-PoE
Classifications
CWE-120, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 30, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 1, 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=6.2c.884

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

TOTOLINK · CA300-PoEversion=6.2c.884

Published CVSS scores

8.8NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
5.3VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/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
6.3VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
6.5VulDBAV:N/AC:L/Au:S/C:P/I:P/A:P

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 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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