CVE-2024-48442Public exploit

Unauthenticated SSH access through backdoor account

Published Oct 24, 2024 · Updated Oct 25, 2024

Missing authentication in Shenzhen Tuoshi NR500-EA firmware 3.2.2543.12.18 allows attackers to obtain SSH access over an adjacent network. The firmware's SSH authentication path accepts a built-in backdoor account instead of enforcing normal authentication, although the account details are not public. Network adjacency is required; successful access exposes data available through the SSH account, with no reported integrity or availability impact.

CVSS severity6.5
Medium
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authentication in Shenzhen Tuoshi NR500-EA firmware 3.2.2543.12.18 allows attackers to obtain SSH access over an adjacent network. The firmware's SSH authentication path accepts a built-in backdoor account instead of enforcing normal authentication, although the account details are not public. Network adjacency is required; successful access exposes data available through the SSH account, with no reported integrity or availability impact.

The record

CVE
CVE-2024-48442
Published
Oct 24, 2024
Updated
Oct 25, 2024
Vendor
Shenzhen Tuoshi Network Communications Co., Ltd.
Product
NR500-EA Firmware
Classifications
CWE-306, T1210
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 24, 2024CVE publishedPublication date reported by the CVE source.
  2. Oct 25, 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=rg500ueaabxcomslicv3.2.2543.12.18

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Shenzhen Tuoshi Network Communications Co., Ltd. · NR500-EA Firmwareversion=rg500ueaabxcomslicv3.2.2543.12.18

Published CVSS scores

6.5CISA-ADPCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

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)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
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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