CVE-2025-13945

MEDIUM

Published Dec 3, 2025 Modified Dec 5, 2025 CWE-1325

Description

HTTP3 dissector crash in Wireshark 4.6.0 and 4.6.1 allows denial of service

CVSS v3.1 Score

5.5

MEDIUM

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

Weakness Type (CWE)

CWE-1325 CWE-1325

Affected Products

Vendor	Product	Versions
wireshark	wireshark	4.6.0 — 4.6.2

References

Advisories & Patches

https://gitlab.com/wireshark/wireshark/-/issues/20860 https://www.wireshark.org/security/wnpa-sec-2025-07.html

Exploits

https://gitlab.com/wireshark/wireshark/-/issues/20860 https://www.wireshark.org/security/wnpa-sec-2025-07.html

Frequently Asked Questions

What is CVE-2025-13945? +

HTTP3 dissector crash in Wireshark 4.6.0 and 4.6.1 allows denial of service It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2025-13945? +

CVE-2025-13945 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-13945? +

CVE-2025-13945 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-2025-13945? +

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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