What is CVE-2025-13674?

CVE-2025-13674 is a medium-severity vulnerability in Wireshark, classified under Access of Uninitialized Pointer. CVSS score: 5.5/10. Published 2025-11-26.

How severe is CVE-2025-13674?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Wireshark

CVE-2025-13674

BPv7 dissector crash in Wireshark 4.6.0 allows denial of service

Published 2025-11-26 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.001 (1.3th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 1st percentile — 1.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: -0.000

Affected products

Wireshark — versions 4.6.0
Wireshark Foundation — versions 4.6.0

Weakness classification (CWE)

CWE-824 — Access of Uninitialized Pointer

References

www.wireshark.org/security/wnpa-sec-2025-05.html (Vendor Advisory)
gitlab.com/wireshark/wireshark/-/issues/20770 (issue-tracking, permissions-required, Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2025-13674?: CVE-2025-13674 is a medium-severity vulnerability in Wireshark, classified under Access of Uninitialized Pointer. CVSS score: 5.5/10. Published 2025-11-26.
How severe is CVE-2025-13674?: Medium severity. CVSS v3 base score is 5.5 out of 10.