Cyber Resilience

CVE-2023-30308

MediumPublic PoC

Published: 28 May 2024

Published
28 May 2024
Modified
13 August 2025
KEV Added
Patch
CVSS Score v3.1 6.5 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.0016 36.2th percentile
Risk Priority 13 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-30308 is a medium-severity Observable Discrepancy (CWE-203) vulnerability in Ruijie Rg-Eg210G-P Firmware. Its CVSS base score is 6.5 (Medium).

Operationally, ranked at the 36.2th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

An issue discovered in Ruijie EG210G-P, Ruijie EG105G-V2, Ruijie NBR, and Ruijie EG105G routers allows attackers to hijack TCP sessions which could lead to a denial of service.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

ruijie
rg-eg210g-p firmware
all versions
ruijie
rg-eg105g v2 firmware
all versions
ruijie
rg-nbr6210-e firmware
all versions
ruijie
rg-nbr6215-e firmware
all versions
ruijie
rg-nbr6120-e firmware
all versions
ruijie
rg-nbr6205-e firmware
all versions
ruijie
rg-eg105g firmware
all versions

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-203

Misdirection can normalize or falsify responses to eliminate observable discrepancies that aid reconnaissance.

addresses: CWE-203

Observable discrepancies in system behavior can be modulated to create covert storage or timing channels; the required analysis detects and constrains such avenues.

addresses: CWE-203

Prevents attackers from using observable differences in error responses to infer internal system details or state.

References