What’s Vulnerable › Vulnerabilities

CVE-2025-5601: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') in Wireshark

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-06-04 · updated 2026-06-17
• Weakness: CWE-120

Description

Column handling crashes in Wireshark 4.4.0 to 4.4.6 and 4.2.0 to 4.2.12 allows denial of service via packet injection or crafted capture file

Affected products

• Wireshark Foundation Wireshark: from 4.2.0 before 4.2.12; from 4.4.0 before 4.4.7 — fixed in 4.2.12, 4.4.7

How to fix

Upgrade to a fixed version: Wireshark Foundation Wireshark 4.2.12, 4.4.7. Check the vendor advisory for mitigations.

References

• https://gitlab.com/wireshark/wireshark/-/issues/20509
• https://www.wireshark.org/security/wnpa-sec-2025-02.html

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