DoS vulnerabilities in Wireshark

Description

Multiple vulnerabilities were found in Wireshark. Malicious users can exploit these vulnerabilities to cause denial of service.

Below is a complete list of vulnerabilities:

1. Denial of service vulnerability in Wireshark dissector can be exploited remotely to cause denial of service.
2. Denial of service vulnerability in Wireshark allows denial of service can be exploited remotely to cause denial of service.

Original advisories

• wnpa-sec-2026-01 – BLF file parser crash

• wnpa-sec-2026-02 – IEEE 802.11 dissector crash
• wnpa-sec-2026-03 – SOME/IP-SD dissector crash
• wnpa-sec-2026-04 – HTTP3 dissector infinite loop

Exploitation

Public exploits exist for this vulnerability.

Related products

• Wireshark

CVE list

• CVE-2026-0959
  high
• CVE-2026-0960
  high
• CVE-2026-0961
  high
• CVE-2026-0962
  high

Read more

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