CVE-2024-8580Public exploitNetwork attack vector

Unauthenticated account access via hard-coded password

Published Sep 8, 2024 · Updated Sep 9, 2024

Hard-coded credentials in TOTOLINK AC1200 T8 4.1.5cu.861_B20230220 allow remote attackers to gain account access over a network. The affected firmware stores a fixed password in /etc/shadow.sample instead of an administrator-changeable, device-specific secret. Exploitation requires no prior authentication or user interaction but has high attack complexity; successful use grants the embedded account's privileges.

CVSS severity9.2
Critical
EPSS probability1.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

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Summary

What happened

Hard-coded credentials in TOTOLINK AC1200 T8 4.1.5cu.861_B20230220 allow remote attackers to gain account access over a network. The affected firmware stores a fixed password in /etc/shadow.sample instead of an administrator-changeable, device-specific secret. Exploitation requires no prior authentication or user interaction but has high attack complexity; successful use grants the embedded account's privileges.

The record

CVE
CVE-2024-8580
Published
Sep 8, 2024
Updated
Sep 9, 2024
Vendor
TOTOLINK
Product
T8
Classifications
CWE-259, T1078
Attack vector
network
Privileges
unauthenticated

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

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

TOTOLINK · T8version=4.1.5cu.861_B20230220

Published CVSS scores

8.1VulDBCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
8.1VulDBCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
8.1NISTCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
9.2VulDBCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
7.6VulDBAV:N/AC:H/Au:N/C:C/I:C/A:C

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-259Use of Hard-coded Password
T1078Valid Accounts

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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