What is CVE-2018-7333?

CVE-2018-7333 is a high-severity vulnerability in Wireshark, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 7.5/10. Published 2018-02-23.

How severe is CVE-2018-7333?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Wireshark

CVE-2018-7333

In Wireshark 2.4.0 to 2.4.4 and 2.2.0 to 2.2.12, epan/dissectors/packet-rpcrdma.c had an infinite loop that was addressed by validating a chunk size.

Published 2018-02-23 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.022 (81.7th percentile), scored 2026-10-01.

Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 81.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.021 · newest: 0.022 · change: +0.000

Affected products

Wireshark

Weakness classification (CWE)

CWE-835 — Loop with Unreachable Exit Condition (Infinite Loop)

References

code.wireshark.org/review/gitweb
www.wireshark.org/security/wnpa-sec-2018-06.html (Vendor Advisory)
www.securityfocus.com/bid/103158 (VDB Entry, Third Party Advisory, vdb-entry)
bugs.wireshark.org/bugzilla/show_bug.cgi (Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2018-7333?: CVE-2018-7333 is a high-severity vulnerability in Wireshark, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 7.5/10. Published 2018-02-23.
How severe is CVE-2018-7333?: High severity. CVSS v3 base score is 7.5 out of 10.