CVE-2026-5404

MEDIUM
Published May 1, 2026 Modified May 1, 2026 CWE-120

Description

K12 RF5 file parser crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service

CVSS v3.1 Score

4.7
MEDIUM
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS — Exploit Prediction

0.0001
Probability of exploitation
0.01%
Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-120 CWE-120

Affected Products

Vendor Product
wireshark wireshark
wireshark wireshark

References

Frequently Asked Questions

What is CVE-2026-5404? +
K12 RF5 file parser crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service It has a CVSS v3.1 base score of 4.7 (MEDIUM).
How severe is CVE-2026-5404? +
CVE-2026-5404 has a CVSS v3.1 score of 4.7 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0001, placing it in the 0th percentile for exploitation probability.
What products are affected by CVE-2026-5404? +
CVE-2026-5404 affects products from wireshark, specifically: wireshark. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2026-5404? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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