PT-2026-36040 · Wireshark · Wireshark

Sharon Brizinov · Published 2026-04-30 · Updated 2026-05-09 · CVE-2026-6868

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Wireshark versions 4.6.0 through 4.6.4 Wireshark versions 4.4.0 through 4.4.14

Description A crash in the HTTP protocol dissector allows for a denial of service. This occurs when the software processes malformed traffic, which can lead to the crashing of analysis sessions.

Recommendations Update Wireshark versions 4.6.0 through 4.6.4 to a patched version. Update Wireshark versions 4.4.0 through 4.4.14 to a patched version.

Fix

DoS

Stack Overflow

Weakness Enumeration

CWE-121

Related Identifiers

CVE-2026-6868

OESA-2026-2225

OESA-2026-2226

OESA-2026-2227

OESA-2026-2228

OPENSUSE-SU-2026:10686-1

Affected Products

Wireshark

References · 98

• https://nvd.nist.gov/vuln/detail/CVE-2026-6533 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-5406 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-5409 · Security Note
• https://gitlab.com/wireshark/wireshark/-/work_items/21185 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-6520 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-6531 · Security Note
• https://cve.org/CVERecord?id=CVE-2026-6868 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-5657 · Security Note
• https://osv.dev/vulnerability/OESA-2026-2225 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-6868 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-5405 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-6524 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-5407 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-7376 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-6521 · Security Note