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Vulnerability record · CVE-2023-30308 · published 28 May 2024

CVE-2023-30308: Ruijie rg-eg210g-p firmware observable discrepancy vulnerability

Ruijie · Rg Eg210g P Firmware

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.

6.5 CVSS 3.1 Medium EPSS 0.38% · top 70.8% CWE-203 · Observable discrepancy
6.5CVSS 3.1 base score
0.38%EPSS exploitation probability, 30 days
NoNot in CISA KEV
7Affected product versions listed by NVD
2References, 2 tagged exploit
17 Jun 2026Last modified by NVD

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.

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

Affected products

7 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.ndss-symposium.org/ndss-paper/exploiting-sequence-number-leakage-tcp-hijacking-in-nat-enabled-wi-fi-networks ExploitTechnical DescriptionThird Party Advisory
https://www.ndss-symposium.org/ndss-paper/exploiting-sequence-number-leakage-tcp-hijacking-in-nat-enabled-wi-fi-networks ExploitTechnical DescriptionThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2023-48849Ruijie rg-eg1000c firmware vulnerabilityRuijie EG Series Routers version EG_3.0(1)B11P216 and before allows unauthenticated attackers to remotely execute arbitrary code due to incorrect fil…EPSS 1.3%9.8CVE-2023-34644Ruijie rg-ew1200r firmware code injection vulnerabilityRemote code execution vulnerability in Ruijie Networks Product: RG-EW series home routers and repeaters EW_3.0(1)B11P204, RG-NBS and RG-S1930 series …EPSS 1.8%8.8CVE-2023-38902Ruijie rg-ew1200 firmware command injection vulnerabilityA command injection vulnerability in RG-EW series home routers and repeaters v.EW_3.0(1)B11P219, RG-NBS and RG-S1930 series switches v.SWITCH_3.0(1)B…EPSS 2.6%5.3CVE-2024-39891Twilio Authy API phone number enumeration via observable discrepancyAn unauthenticated endpoint in the Twilio Authy API, reachable through Authy Android before 25.1.0 and Authy iOS before 26.1.0, accepted streams of p…KEVEPSS 1.7%analysed

Source: NIST National Vulnerability Database (record CVE-2023-30308), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.