CVE-2026-5405

HIGH
Published May 1, 2026 Modified May 4, 2026 CWE-122 CWE-787

Description

RDP protocol dissector crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service and possible code execution

CVSS v3.1 Score

7.8
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/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-122 CWE-122
CWE-787 Out-of-bounds Write

Affected Products

Vendor Product
wireshark wireshark
wireshark wireshark

References

Frequently Asked Questions

What is CVE-2026-5405? +
RDP protocol dissector crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service and possible code execution It has a CVSS v3.1 base score of 7.8 (HIGH).
How severe is CVE-2026-5405? +
CVE-2026-5405 has a CVSS v3.1 score of 7.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0001, placing it in the 0th percentile for exploitation probability.
What products are affected by CVE-2026-5405? +
CVE-2026-5405 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-2026-5405? +
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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