What is CVE-2026-95387?

CVE-2026-95387 is a high-severity vulnerability in Wireshark Foundation, classified under Heap-based Buffer Overflow. CVSS score: 8.1/10. Published 2026-09-29.

How severe is CVE-2026-95387?

High severity. CVSS v3 base score is 8.1 out of 10.

Buffer overflow in Wireshark Foundation

CVE-2026-95387

SPDY protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service

Vulnerability class: Buffer Overflow

Published 2026-09-29.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Wireshark Foundation

Weakness classification (CWE)

CWE-122 — Heap-based Buffer Overflow

References

www.wireshark.org/security/wnpa-sec-2026-97.html
gitlab.com/wireshark/wireshark/-/work_items/21487

Frequently asked questions

What is CVE-2026-95387?: CVE-2026-95387 is a high-severity vulnerability in Wireshark Foundation, classified under Heap-based Buffer Overflow. CVSS score: 8.1/10. Published 2026-09-29.
How severe is CVE-2026-95387?: High severity. CVSS v3 base score is 8.1 out of 10.