CVE-2026-3203

Name: CVE-2026-3203
Creator: NVD / NIST
Published: 2026-02-25T15:20:55.973+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.16%

Last modified Jun 17, 2026

CVE-2026-3203 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. RF4CE Profile protocol dissector crash in Wireshark 4.6.0 to 4.6.3 and 4.4.0 to 4.4.13 allows denial of service. EPSS estimates a 0.16% chance of exploitation in the next 30 days.

Description

RF4CE Profile protocol dissector crash in Wireshark 4.6.0 to 4.6.3 and 4.4.0 to 4.4.13 allows denial of service

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

0.16%

5.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-126

Affected Software

Vendor	Product	Versions
Wireshark	Wireshark	>= 4.4.0, < 4.4.14
Wireshark	Wireshark	>= 4.6.0, < 4.6.4

References

https://gitlab.com/wireshark/wireshark/-/issues/21009Issue Tracking
https://www.wireshark.org/security/wnpa-sec-2026-07.htmlVendor Advisory

Timeline

Published: Feb 25, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-3203?

RF4CE Profile protocol dissector crash in Wireshark 4.6.0 to 4.6.3 and 4.4.0 to 4.4.13 allows denial of service

How severe is CVE-2026-3203?

CVE-2026-3203 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.16% probability of exploitation in the next 30 days.

How do I fix CVE-2026-3203?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-3203?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST