CVE-2024-9781: Improper Handling of Missing Values in Wireshark

Severity: high (CVSS 7.5 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: none known
Published: 2024-10-10 · updated 2026-06-17
Weakness: CWE-230

Description

AppleTalk and RELOAD Framing dissector crash in Wireshark 4.4.0 and 4.2.0 to 4.2.7 allows denial of service via packet injection or crafted capture file

Affected products

Wireshark Foundation Wireshark: from 4.2.0 before 4.2.8; 4.4.0 — fixed in 4.2.8

How to fix

Upgrade to a fixed version: Wireshark Foundation Wireshark 4.2.8. Check the vendor advisory for mitigations.

References

https://gitlab.com/wireshark/wireshark/-/issues/20114
https://www.wireshark.org/security/wnpa-sec-2024-13.html

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