CVE-2026-95387 Heap-based Buffer Overflow in Wireshark

What is CVE-2026-95387?

CVE-2026-95387 is a high-severity memory corruption vulnerability in Wireshark Wireshark, published on 29 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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

Weakness: CWE-122

Which versions are affected by CVE-2026-95387?

It affects 1 product.

Products include Wireshark Wireshark.

How do I fix CVE-2026-95387?

Upgrade to a fixed version.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2026-95387 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-95387 exists.

Other vulnerabilities in Wireshark Wireshark

• CVE-2011-0444 Memory corruption in n/a Critical 10.0
• CVE-2010-2994 Memory corruption in n/a Critical 10.0
• CVE-2010-2995 Memory corruption in n/a Critical 10.0
• CVE-2009-1266 Other in n/a Critical 10.0
• CVE-2009-1210 Memory corruption in n/a Critical 10.0

All Wireshark Wireshark vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as AZL-105030, DEBIAN-CVE-2026-95387, GHSA-v28h-8438-ghj5, MINI-7r8v-ccf7-hcrx, UBUNTU-CVE-2026-95387.