Denial of Service Vulnerability in Wireshark by Riverbed Technology
CVE-2026-95386

5.5MEDIUM

Key Information:

Vendor

Wireshark
Status
Wireshark
Vendor
CVE Published:
29 September 2026

What is CVE-2026-95386?

A denial of service vulnerability exists in the TTL file parser of Wireshark versions 4.6.0 through 4.6.8, which can cause the application to enter an infinite loop when processing specific files. This flaw could lead to significant disruptions in network analysis activities by rendering the software unresponsive, thereby preventing users from monitoring and diagnosing network traffic effectively. Users are encouraged to upgrade their installations to the latest version to mitigate this issue.

Affected Version(s)

Wireshark 4.6.0 < 4.6.9

References

https://www.wireshark.org/security/wnpa-sec-2026-94.html
https://gitlab.com/wireshark/wireshark/-/work_items/21501

CVSS V3.1

Score:
5.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Discovered independently by Aisle Research (Dmitrijs Trizna, Luigino Camastra, Ze Sheng (O2Lab & TAMU), Igor Morgenstern) and Daniel Birtwhistle
.