What is CVE-2023-30312?

CVE-2023-30312 is a high-severity vulnerability in N/a, classified under Observable Discrepancy. CVSS score: 7.3/10. Published 2024-05-28.

How severe is CVE-2023-30312?

High severity. CVSS v3 base score is 7.3 out of 10.

Vulnerability in N/a

CVE-2023-30312

An issue discovered in OpenWrt 18.06, 19.07, 21.02, 22.03, and beyond allows off-path attackers to hijack TCP sessions, which could lead to a denial of service, impersonating the client to the server (e.g., for access to files over FTP), and impersonating the server to the client (e.g., to deliver false information from a finance website). This occurs because nf_conntrack_tcp_no_window_check is true by default.

EPSS: 0.003 (21.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H.

Affected products

N/a — versions n/a

Weakness classification (CWE)

CWE-203 — Observable Discrepancy

References

Frequently asked questions

What is CVE-2023-30312?: CVE-2023-30312 is a high-severity vulnerability in N/a, classified under Observable Discrepancy. CVSS score: 7.3/10. Published 2024-05-28.
How severe is CVE-2023-30312?: High severity. CVSS v3 base score is 7.3 out of 10.