SSH dissector crash in Wireshark 4.4.0 to 4.4.8 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 SUSE Linux SLES16 / SLES_SAP16 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:20222-1 advisory.

    Update to Wireshark 4.4.13:

    - CVE-2025-11626: MONGO dissector infinite loop (bsc#1251933).
    - CVE-2025-13499: Kafka dissector crash (bsc#1254108).
    - CVE-2025-13945: HTTP3 dissector crash (bsc#1254471).
    - CVE-2025-13946: MEGACO dissector infinite loop (bsc#1254472).
    - CVE-2025-9817: SSH dissector crash (bsc#1249090).
    - CVE-2026-0959: IEEE 802.11 dissector crash (bsc#1256734).
    - CVE-2026-0961: BLF file parser crash (bsc#1256738).
    - CVE-2026-0962: SOME/IP-SD dissector crash (bsc#1256739).

    Full changelog:

    https://www.wireshark.org/docs/relnotes/wireshark-4.4.13.html

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 remote RockyLinux 10 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2026:1714 advisory.

    * Wireshark: NULL Pointer Dereference in Wireshark (CVE-2025-9817)

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

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

The remote openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:20151-1 advisory.

    Update to Wireshark 4.4.13:

    - CVE-2025-11626: MONGO dissector infinite loop (bsc#1251933).
    - CVE-2025-13499: Kafka dissector crash (bsc#1254108).
    - CVE-2025-13945: HTTP3 dissector crash (bsc#1254471).
    - CVE-2025-13946: MEGACO dissector infinite loop (bsc#1254472).
    - CVE-2025-9817: SSH dissector crash (bsc#1249090).
    - CVE-2026-0959: IEEE 802.11 dissector crash (bsc#1256734).
    - CVE-2026-0961: BLF file parser crash (bsc#1256738).
    - CVE-2026-0962: SOME/IP-SD dissector crash (bsc#1256739).

    Full changelog:

    https://www.wireshark.org/docs/relnotes/wireshark-4.4.13.html

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 remote AlmaLinux 10 host has packages installed that are affected by a vulnerability as referenced in the ALSA-2026:1714 advisory.

    * Wireshark: NULL Pointer Dereference in Wireshark (CVE-2025-9817)

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

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

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:1714 advisory.

    The wireshark packages contain a network protocol analyzer used to capture and browse the traffic running     on a computer network.

    Security Fix(es):

    * Wireshark: NULL Pointer Dereference in Wireshark (CVE-2025-9817)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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

The remote Oracle Linux 10 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2026-1714 advisory.

    - Resolves: RHEL-136916 - NULL Pointer Dereference in Wireshark (CVE-2025-9817)

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

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

The version of Tencent Linux installed on the remote TencentOS Server 4 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the TSSA-2025:0723 advisory.

    Package updates are available for TencentOS Server 4 that fix the following vulnerabilities:

    CVE-2025-9817:
    SSH dissector crash in Wireshark 4.4.0 to 4.4.8 allows denial of service

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

Note that Nessus has not tested for this issue 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 4.4.9. It is, therefore, affected by multiple vulnerabilities as referenced in the wireshark-4.4.9 advisory.

  - SSH dissector crash in Wireshark 4.4.0 to 4.4.8 allows denial of service (CVE-2025-9817)

  - Column handling crashes in Wireshark 4.4.0 to 4.4.6 and 4.2.0 to 4.2.12 allows denial of service via     packet injection or crafted capture file (CVE-2025-5601)

  - Bundle Protocol and CBOR dissector crashes in Wireshark 4.4.0 to 4.4.3 and 4.2.0 to 4.2.10 allows denial     of service via packet injection or crafted capture file (CVE-2025-1492)

  - FiveCo RAP dissector infinite loop in Wireshark 4.4.0 to 4.4.1 and 4.2.0 to 4.2.8 allows denial of service     via packet injection or crafted capture file (CVE-2024-11595)

  - ECMP dissector crash in Wireshark 4.4.0 to 4.4.1 and 4.2.0 to 4.2.8 allows denial of service via packet     injection or crafted capture file (CVE-2024-11596)

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 4.4.9. It is, therefore, affected by multiple vulnerabilities as referenced in the wireshark-4.4.9 advisory.

  - SSH dissector crash in Wireshark 4.4.0 to 4.4.8 allows denial of service (CVE-2025-9817)

  - Column handling crashes in Wireshark 4.4.0 to 4.4.6 and 4.2.0 to 4.2.12 allows denial of service via     packet injection or crafted capture file (CVE-2025-5601)

  - Bundle Protocol and CBOR dissector crashes in Wireshark 4.4.0 to 4.4.3 and 4.2.0 to 4.2.10 allows denial     of service via packet injection or crafted capture file (CVE-2025-1492)

  - FiveCo RAP dissector infinite loop in Wireshark 4.4.0 to 4.4.1 and 4.2.0 to 4.2.8 allows denial of service     via packet injection or crafted capture file (CVE-2024-11595)

  - ECMP dissector crash in Wireshark 4.4.0 to 4.4.1 and 4.2.0 to 4.2.8 allows denial of service via packet     injection or crafted capture file (CVE-2024-11596)

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 a vulnerability as referenced in the SUSE-SU-2025:03294-1 advisory.

    Update to version 4.2.13.

    Security issues fixed:

    - CVE-2025-9817: SSH dissector crash due to NULL pointer dereference when processing malformed packet     traces       (bsc#1249090).

    Non-security issues fixed:

    - Bug in UDS dissector with Service ReadDataByPeriodicIdentifier Response.
    - Incorrectly parsed `application/x-www-form-urlencoded` key following a name-value byte sequence with no     `=`.
    - DNP3 time stamp not working after epoch time (year 2038).
    - Bug in LZ77 decoder; reads a 16-bit length when it should read a 32-bit length.

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

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

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2025-1175 advisory.

    SSH dissector crash in Wireshark 4.4.0 to 4.4.8 allows denial of service (CVE-2025-9817)

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

Note that Nessus has not tested for this issue 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 a vulnerability as referenced in the FEDORA-2025-47268f5a30 advisory.

    New version 4.4.9


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

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

The remote Fedora 41 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2025-3545034aef advisory.

    New version 4.4.9


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

Note that Nessus has not tested for this issue 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.

  - SSH dissector crash in Wireshark 4.4.0 to 4.4.8 allows denial of service (CVE-2025-9817)

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
298233	SUSE SLES16 Security Update : wireshark (SUSE-SU-2026:20222-1)	Nessus	SuSE Local Security Checks	high
298028	RockyLinux 10 : wireshark (RLSA-2026:1714)	Nessus	Rocky Linux Local Security Checks	high
297775	openSUSE 16 Security Update : wireshark (openSUSE-SU-2026:20151-1)	Nessus	SuSE Local Security Checks	high
297668	AlmaLinux 10 : wireshark (ALSA-2026:1714)	Nessus	Alma Linux Local Security Checks	high
297577	RHEL 10 : wireshark (RHSA-2026:1714)	Nessus	Red Hat Local Security Checks	high
297560	Oracle Linux 10 : wireshark (ELSA-2026-1714)	Nessus	Oracle Linux Local Security Checks	high
275910	TencentOS Server 4: wireshark (TSSA-2025:0723)	Nessus	Tencent Local Security Checks	high
271971	Wireshark 4.4.x < 4.4.9 Multiple Vulnerabilities	Nessus	Windows	high
271970	Wireshark 4.4.x < 4.4.9 Multiple Vulnerabilities (macOS)	Nessus	MacOS X Local Security Checks	high
265747	SUSE SLED15 / SLES15 / openSUSE 15 Security Update : wireshark (SUSE-SU-2025:03294-1)	Nessus	SuSE Local Security Checks	high
264836	Amazon Linux 2023 : wireshark-cli, wireshark-devel (ALAS2023-2025-1175)	Nessus	Amazon Linux Local Security Checks	high
264537	Fedora 42 : wireshark (2025-47268f5a30)	Nessus	Fedora Local Security Checks	high
264535	Fedora 41 : wireshark (2025-3545034aef)	Nessus	Fedora Local Security Checks	high
261528	Linux Distros Unpatched Vulnerability : CVE-2025-9817	Nessus	Misc.	high

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