Denial of Service Vulnerability in Wireshark RF4CE Profile Protocol Dissector
CVE-2026-3203

5.5MEDIUM

Key Information:

Vendor

Wireshark
Status
Wireshark
Vendor
CVE Published:
25 February 2026

What is CVE-2026-3203?

A vulnerability within the RF4CE Profile protocol dissector in Wireshark versions 4.6.0 to 4.6.3 and 4.4.0 to 4.4.13 exposes users to potential denial of service attacks. If exploited, this vulnerability can cause the application to crash, disrupting network analysis efforts and potentially leading to data loss. Users are advised to update to the latest versions of Wireshark to mitigate risks. More details can be found in the official security advisory or the discussion on GitLab Issue #21009.

Affected Version(s)

Wireshark 4.6.0 < 4.6.4

Wireshark 4.4.0 < 4.4.14

References

https://www.wireshark.org/security/wnpa-sec-2026-07.html
https://gitlab.com/wireshark/wireshark/-/issues/21009
issue-trackingpermissions-required

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

.