CVE-2023-30308

Name: CVE-2023-30308
Creator: NVD / NIST
Published: 2024-05-28T20:16:20.453+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.38%

Last modified Jun 17, 2026

CVE-2023-30308 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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.. EPSS estimates a 0.38% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

0.38%

29.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-203

Affected Software

Vendor	Product	Versions
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

References

https://www.ndss-symposium.org/ndss-paper/exploiting-sequence-number-leakage-tcp-hijacking-in-nat-enabled-wi-fi-networks/Exploit, Technical Description, Third Party Advisory
https://www.ndss-symposium.org/ndss-paper/exploiting-sequence-number-leakage-tcp-hijacking-in-nat-enabled-wi-fi-networks/Exploit, Technical Description, Third Party Advisory

Timeline

Published: May 28, 2024
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2023-30308?

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.

How severe is CVE-2023-30308?

CVE-2023-30308 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.38% probability of exploitation in the next 30 days.

How do I fix CVE-2023-30308?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-30308?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST