CVE-2017-13764

In Wireshark 2.4.0, the Modbus dissector could crash with a NULL pointer dereference. This was...

7.5 HighFix available

In Wireshark 2.4.0, the Modbus dissector could crash with a NULL pointer dereference. This was addressed in epan/dissectors/packet-mbtcp.c by adding length validation.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: None
Availability: High

Exploit likelihood

1.24%Unchanged since Apr 14, 2021

What each source reports

NVD Score used 7.5

In Wireshark 2.4.0, the Modbus dissector could crash with a NULL pointer dereference. This was addressed in epan/dissectors/packet-mbtcp.c by adding length validation.

Record: CVE-2017-13764
CVSS 3.0: 7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0: 5.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness: CWE-476
Updated: 2026-11-02

CVE List No score

In Wireshark 2.4.0, the Modbus dissector could crash with a NULL pointer dereference. This was addressed in epan/dissectors/packet-mbtcp.c by adding length validation.

Record: CVE-2017-13764
Updated: 2026-11-02

EUVDEUVD-2017-5279 No score

In Wireshark 2.4.0, the Modbus dissector could crash with a NULL pointer dereference. This was addressed in epan/dissectors/packet-mbtcp.c by adding length validation.

Record: EUVD-2017-5279
Updated: 2026-11-03

GitHub AdvisoriesGHSA-hvvw-753h-39jv 7.5

In Wireshark 2.4.0, the Modbus dissector could crash with a NULL pointer dereference. This was...

In Wireshark 2.4.0, the Modbus dissector could crash with a NULL pointer dereference. This was addressed in epan/dissectors/packet-mbtcp.c by adding length validation.

Record: GHSA-hvvw-753h-39jv
CVSS 3.0: 7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-476
Updated: 2026-11-02

OSV 7.5

In Wireshark 2.4.0, the Modbus dissector could crash with a NULL pointer dereference. This was addressed in epan/dissectors/packet-mbtcp.c by adding length validation.

Record: CVE-2017-13764
CVSS 3.0: 7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVDEBIAN-CVE-2017-13764 7.5

In Wireshark 2.4.0, the Modbus dissector could crash with a NULL pointer dereference. This was addressed in epan/dissectors/packet-mbtcp.c by adding length validation.

Record: DEBIAN-CVE-2017-13764
CVSS 3.0: 7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVUBUNTU-CVE-2017-13764 7.5

In Wireshark 2.4.0, the Modbus dissector could crash with a NULL pointer dereference. This was addressed in epan/dissectors/packet-mbtcp.c by adding length validation.

Record: UBUNTU-CVE-2017-13764
CVSS 3.0: 7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVopenSUSE-SU-2024:11513-1 No score

libwireshark14-3.4.8-1.2 on GA media

These are all security issues fixed in the libwireshark14-3.4.8-1.2 package on the GA media of openSUSE Tumbleweed.

Record: openSUSE-SU-2024:11513-1
Updated: 2026-11-02

Affected products

wireshark

Affected packages

Affected packages
Package	Affected	Fixed
`wireshark` Debian:12	before 2.4.1-1	2.4.1-1
`wireshark` Debian:13	before 2.4.1-1	2.4.1-1
`wireshark` Debian:14	before 2.4.1-1	2.4.1-1
`wireshark` Ubuntu:14.04:LTS	before 2.6.3-1~ubuntu14.04.1, plus listed versions 1.10.2-11.10.3-11.10.5-1ubuntu11.10.5-21.10.6-11.12.1+g01b65bf-4+deb8u11ubuntu0.14.04.1	2.6.3-1~ubuntu14.04.1
`wireshark` Ubuntu:16.04:LTS	before 2.6.3-1~ubuntu16.04.1, plus listed versions 1.12.7+g7fc8978-11.12.8+g5b6e543-22.0.1+g59ea380-3build12.0.2+ga16e22e-12.2.6+g32dac6a-2ubuntu0.16.04	2.6.3-1~ubuntu16.04.1
`wireshark` Ubuntu:18.04:LTS	before 2.6.3-1~ubuntu18.04.1, plus listed versions 2.4.2-12.4.3-12.4.4-12.4.5-1	2.6.3-1~ubuntu18.04.1
`wireshark` openSUSE:Tumbleweed	before 3.4.8-1.2	3.4.8-1.2

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2017-13764 is a high vulnerability (CVSS 7.5) in Wireshark, published August 30, 2017. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.24%, the 69th percentile. Fixed in wireshark 2.4.1-1.

References

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