CVE-2025-58778: Ruijie Networks RG-EST300 · Hidden Functionality
Affects Ruijie Networks RG-EST300Source CVE Database V5
Not known to be exploited · CVSS 7.2 High.
Data as of 26 Oct 2026, 10:12 UTC
- EPSS
- 0.5% chance of exploitation in 30 days – higher than 48% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 16 Oct 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
AI-suggested
European organizations should immediately audit their RG-EST300 devices to determine if the affected firmware versions are in use. Network administrators should verify whether the undocumented SSH server is enabled and disable it if possible through device configuration settings. Changing all default or known credentials associated with the SSH service is critical to prevent unauthorized access. Network segmentation and strict access controls should be applied to limit SSH access to trusted management networks only. Monitoring and logging of SSH access attempts should be enhanced to detect suspicious activity. Organizations should engage with Ruijie Networks for official patches or firmware updates addressing this vulnerability and apply them promptly once available. Additionally, conducting penetration testing and vulnerability assessments focusing on these devices can help identify exploitation attempts. Finally, raising awareness among IT staff about this hidden service will improve detection and response capabilities.
Description
Multiple versions of RG-EST300 provided by Ruijie Networks provide SSH server functionality. It is not documented in the manual, and enabled in the initial configuration. Anyone with the knowledge of the related credentials can log in to the affected device, leading to information disclosure, altering the system configurations, or causing a denial of service (DoS) condition.