CVE-2025-58778Network attack vector

Credentialed device compromise via undocumented SSH

Published Oct 16, 2025 · Updated Oct 16, 2025

Hidden SSH functionality in Ruijie Networks RG-EST300 firmware allows remote authenticated users to access the device over a network. The initial configuration starts an SSH server that the product manual does not document and accepts the associated credentials for login. Knowledge of those credentials is required; successful access exposes device information, permits system-configuration changes, and can interrupt service.

CVSS severity8.6
High
EPSS probability0.60%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Hidden SSH functionality in Ruijie Networks RG-EST300 firmware allows remote authenticated users to access the device over a network. The initial configuration starts an SSH server that the product manual does not document and accepts the associated credentials for login. Knowledge of those credentials is required; successful access exposes device information, permits system-configuration changes, and can interrupt service.

The record

CVE
CVE-2025-58778
Published
Oct 16, 2025
Updated
Oct 16, 2025
Vendor
Ruijie Networks
Product
RG-EST300
Classifications
CWE-912, T1078
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 16, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 16, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=and AP_3.0(1)B2P10_EST300_05220814
  2. Affected versionversion=AP_3.0(1)B2P10_EST300_05232216
  3. Affected versionversion=AP_3.0(1)B2P10_EST300_06151523
  4. Affected versionversion=AP_3.0(1)B2P18_EST300_06210514

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Ruijie Networks · RG-EST300version=and AP_3.0(1)B2P10_EST300_05220814; version=AP_3.0(1)B2P10_EST300_05232216; version=AP_3.0(1)B2P10_EST300_06151523; version=AP_3.0(1)B2P18_EST300_06210514

Published CVSS scores

8.6JPCERT/CCCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
7.2JPCERT/CCCVSS:3.0/AV:N/AC:L/PR:H/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.

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-912Hidden Functionality
T1078Valid Accounts

Public exploit references

No public exploit references are available in this record.

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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