What’s Vulnerable › Vulnerabilities

CVE-2025-11626: Loop with Unreachable Exit Condition ('Infinite Loop') in Wireshark

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-10-10 · updated 2026-10-19
• Weakness: CWE-835

Description

MONGO dissector infinite loop in Wireshark 4.4.0 to 4.4.9 and 4.2.0 to 4.2.13 allows denial of service

Affected products

• Wireshark Foundation Wireshark: from 4.2.0 before 4.2.14; from 4.4.0 before 4.4.10 — fixed in 4.2.14, 4.4.10

How to fix

Upgrade to a fixed version: Wireshark Foundation Wireshark 4.2.14, 4.4.10. Check the vendor advisory for mitigations.

References

• https://gitlab.com/wireshark/wireshark/-/issues/20724
• https://www.wireshark.org/security/wnpa-sec-2025-04.html

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