CVE-2023-30311

HIGH

Published May 28, 2024 Modified Apr 15, 2026 CWE-400

Description

An issue discovered in H3C Magic R365 and H3C Magic R100 routers allows attackers to hijack TCP sessions which could lead to a denial of service.

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CVSS v3.1 Score

7.5

HIGH

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

Weakness Type (CWE)

CWE-400 Uncontrolled Resource Consumption

References

Other References

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

Frequently Asked Questions

What is CVE-2023-30311? +

An issue discovered in H3C Magic R365 and H3C Magic R100 routers allows attackers to hijack TCP sessions which could lead to a denial of service. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2023-30311? +

CVE-2023-30311 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

How do I check if I'm vulnerable to CVE-2023-30311? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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