What’s Vulnerable › Vulnerabilities

CVE-2026-5657: Double Free in Wireshark

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-04-30 · updated 2026-06-17
• Weakness: CWE-415

Description

iLBC codec crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service

Affected products

• Wireshark Foundation Wireshark: from 4.4.0 through 4.4.14; from 4.6.0 through 4.6.4

References

• https://gitlab.com/wireshark/wireshark/-/issues/21113
• https://www.wireshark.org/security/wnpa-sec-2026-20.html
• https://gitlab.com/wireshark/wireshark/-/work_items/21113

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