HTTP3 protocol dissector infinite loop in Wireshark 4.6.0 to 4.6.2 allows denial of service

The remote Debian 13 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-6124 advisory.

    - -------------------------------------------------------------------------     Debian Security Advisory DSA-6124-1                   security@debian.org     https://www.debian.org/security/                       Moritz Muehlenhoff     February 08, 2026                     https://www.debian.org/security/faq
    - -------------------------------------------------------------------------

    Package        : wireshark     CVE ID         : CVE-2025-9817 CVE-2025-11626 CVE-2025-13499 CVE-2025-13945                      CVE-2025-13946 CVE-2026-0959 CVE-2026-0960 CVE-2026-0961                      CVE-2026-0962

    Multiple vulnerabilities have been discocvered in Wireshark, a network     protocol analyzer which could result in denial of service or the     execution of arbitrary code.

    For the stable distribution (trixie), these problems have been fixed in     version 4.4.13-0+deb13u1.

    We recommend that you upgrade your wireshark packages.

    For the detailed security status of wireshark please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/wireshark

    Further information about Debian Security Advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://www.debian.org/security/

    Mailing list: debian-security-announce@lists.debian.org

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-3d29b96a25 advisory.

    New version 4.6.3

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 42 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-eea5babc00 advisory.

    New version 4.6.3

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:0237-1 advisory.

    - CVE-2026-0959: IEEE 802.11 dissector crash (bsc#1256734).
    - CVE-2026-0960: HTTP3 dissector infinite loop (bsc#1256736).
    - CVE-2026-0962: SOME/IP-SD dissector crash (bsc#1256739).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of Wireshark installed on the remote Windows host is prior to 4.6.3. It is, therefore, affected by multiple vulnerabilities as referenced in the wireshark-4.6.3 advisory.

  - SOME/IP-SD protocol dissector crash in Wireshark 4.6.0 to 4.6.2 and 4.4.0 to 4.4.12 allows denial of     service (CVE-2026-0962)

  - BLF file parser crash in Wireshark 4.6.0 to 4.6.2 and 4.4.0 to 4.4.12 allows denial of service     (CVE-2026-0961)

  - IEEE 802.11 protocol dissector crash in Wireshark 4.6.0 to 4.6.2 and 4.4.0 to 4.4.12 allows denial of     service (CVE-2026-0959)

  - HTTP3 protocol dissector infinite loop in Wireshark 4.6.0 to 4.6.2 allows denial of service     (CVE-2026-0960)

  - HTTP3 dissector crash in Wireshark 4.6.0 and 4.6.1 allows denial of service (CVE-2025-13945)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of Wireshark installed on the remote macOS / Mac OS X host is prior to 4.6.3. It is, therefore, affected by multiple vulnerabilities as referenced in the wireshark-4.6.3 advisory.

  - SOME/IP-SD protocol dissector crash in Wireshark 4.6.0 to 4.6.2 and 4.4.0 to 4.4.12 allows denial of     service (CVE-2026-0962)

  - BLF file parser crash in Wireshark 4.6.0 to 4.6.2 and 4.4.0 to 4.4.12 allows denial of service     (CVE-2026-0961)

  - IEEE 802.11 protocol dissector crash in Wireshark 4.6.0 to 4.6.2 and 4.4.0 to 4.4.12 allows denial of     service (CVE-2026-0959)

  - HTTP3 protocol dissector infinite loop in Wireshark 4.6.0 to 4.6.2 allows denial of service     (CVE-2026-0960)

  - HTTP3 dissector crash in Wireshark 4.6.0 and 4.6.1 allows denial of service (CVE-2025-13945)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - HTTP3 protocol dissector infinite loop in Wireshark 4.6.0 to 4.6.2 allows denial of service     (CVE-2026-0960)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Severity
298324	Debian dsa-6124 : libwireshark-data - security update	Nessus	Debian Local Security Checks	high
296520	Fedora 43 : wireshark (2026-3d29b96a25)	Nessus	Fedora Local Security Checks	medium
296514	Fedora 42 : wireshark (2026-eea5babc00)	Nessus	Fedora Local Security Checks	medium
296462	SUSE SLED15 / SLES15 / openSUSE 15 Security Update : wireshark (SUSE-SU-2026:0237-1)	Nessus	SuSE Local Security Checks	medium
294997	Wireshark 4.6.x < 4.6.3 Multiple Vulnerabilities	Nessus	Windows	medium
294996	Wireshark 4.6.x < 4.6.3 Multiple Vulnerabilities (macOS)	Nessus	MacOS X Local Security Checks	medium
286815	Linux Distros Unpatched Vulnerability : CVE-2026-0960	Nessus	Misc.	medium

Detections

Analytics

CVE-2026-0960

medium

Tenable Plugins

high

medium

medium

medium

medium

medium

medium