What is CVE-2023-6175?

CVE-2023-6175 is a high-severity vulnerability in Wireshark, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.8/10. Published 2024-03-26.

How severe is CVE-2023-6175?

High severity. CVSS v3 base score is 7.8 out of 10.

Buffer overflow in Wireshark

CVE-2023-6175

NetScreen file parser crash in Wireshark 4.0.0 to 4.0.10 and 3.6.0 to 3.6.18 allows denial of service via crafted capture file

Vulnerability class: Buffer Overflow

Published 2024-03-26 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.035 (88.6th percentile), scored 2026-10-01.

Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 88.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.035 · newest: 0.035 · change: 0.000

Affected products

Wireshark
Wireshark Foundation — versions 4.0.0, 3.6.0

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

References

www.wireshark.org/security/wnpa-sec-2023-29.html (Vendor Advisory)
gitlab.com/wireshark/wireshark/-/issues/19404 (issue-tracking, Issue Tracking)
af854a3a-2127-422b-91ae-364da2661108
af854a3a-2127-422b-91ae-364da2661108

Frequently asked questions

What is CVE-2023-6175?: CVE-2023-6175 is a high-severity vulnerability in Wireshark, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.8/10. Published 2024-03-26.
How severe is CVE-2023-6175?: High severity. CVSS v3 base score is 7.8 out of 10.