SB20260114186 - Multiple DoS vulnerabilities in Wireshark
Published: January 14, 2026 Updated: February 12, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 4 secuirty vulnerabilities.
1) Infinite loop (CVE-ID: CVE-2026-0960)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to infinite loop in HTTP3 dissector. A remote attacker can consume all available system resources and cause denial of service conditions.
2) Input validation error (CVE-ID: CVE-2026-0962)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in SOME/IP-SD dissector. A remote attacker can send specially crafted input via the network monitored with Wireshark and perform a denial of service (DoS) attack.
3) Input validation error (CVE-ID: CVE-2026-0959)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in IEEE 802.11 dissector. A remote attacker can send specially crafted input via the network monitored with Wireshark and perform a denial of service (DoS) attack.
4) Input validation error (CVE-ID: CVE-2026-0961)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in BLF file parser. A remote attacker can send specially crafted input via the network monitored with Wireshark and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://www.wireshark.org/security/wnpa-sec-2026-04.html
- https://gitlab.com/wireshark/wireshark/-/issues/20944
- https://www.wireshark.org/security/wnpa-sec-2026-03.html
- https://gitlab.com/wireshark/wireshark/-/issues/20945
- https://www.wireshark.org/security/wnpa-sec-2026-02.html
- https://gitlab.com/wireshark/wireshark/-/issues/20939
- https://www.wireshark.org/security/wnpa-sec-2026-01.html
- https://gitlab.com/wireshark/wireshark/-/issues/20880