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CVE-2016-4076

epan/dissectors/packet-ncp2222.inc in the NCP dissector in Wireshark 2.0.x before 2.0.3 does not...

5.9 MediumFix available

epan/dissectors/packet-ncp2222.inc in the NCP dissector in Wireshark 2.0.x before 2.0.3 does not properly initialize memory for search patterns, which allows remote attackers to cause a denial of service (application crash) via a crafted packet.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
High
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

1.75%Up 0.5 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 5.9

epan/dissectors/packet-ncp2222.inc in the NCP dissector in Wireshark 2.0.x before 2.0.3 does not properly initialize memory for search patterns, which allows remote attackers to cause a denial of service (application crash) via a crafted packet.

Record
CVE-2016-4076
CVSS 3.0
5.9 MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0
4.3 MediumAV:N/AC:M/Au:N/C:N/I:N/A:P
Weakness
CWE-284
Updated
2026-11-02
CVE List No score

epan/dissectors/packet-ncp2222.inc in the NCP dissector in Wireshark 2.0.x before 2.0.3 does not properly initialize memory for search patterns, which allows remote attackers to cause a denial of service (application crash) via a crafted packet.

Record
CVE-2016-4076
Updated
2026-11-02
EUVDEUVD-2016-5077 No score

epan/dissectors/packet-ncp2222.inc in the NCP dissector in Wireshark 2.0.x before 2.0.3 does not properly initialize memory for search patterns, which allows remote attackers to cause a denial of service (application crash) via a crafted packet.

Record
EUVD-2016-5077
Updated
2026-11-03
GitHub AdvisoriesGHSA-rrp6-4j2r-8qvq 5.9

epan/dissectors/packet-ncp2222.inc in the NCP dissector in Wireshark 2.0.x before 2.0.3 does not...

epan/dissectors/packet-ncp2222.inc in the NCP dissector in Wireshark 2.0.x before 2.0.3 does not properly initialize memory for search patterns, which allows remote attackers to cause a denial of service (application crash) via a crafted packet.

Record
GHSA-rrp6-4j2r-8qvq
CVSS 3.0
5.9 MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-284
Updated
2026-11-02
OSV 5.9

epan/dissectors/packet-ncp2222.inc in the NCP dissector in Wireshark 2.0.x before 2.0.3 does not properly initialize memory for search patterns, which allows remote attackers to cause a denial of service (application crash) via a crafted packet.

Record
CVE-2016-4076
CVSS 3.0
5.9 MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVDEBIAN-CVE-2016-4076 5.9

epan/dissectors/packet-ncp2222.inc in the NCP dissector in Wireshark 2.0.x before 2.0.3 does not properly initialize memory for search patterns, which allows remote attackers to cause a denial of service (application crash) via a crafted packet.

Record
DEBIAN-CVE-2016-4076
CVSS 3.0
5.9 MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2016-4076 5.9

epan/dissectors/packet-ncp2222.inc in the NCP dissector in Wireshark 2.0.x before 2.0.3 does not properly initialize memory for search patterns, which allows remote attackers to cause a denial of service (application crash) via a crafted packet.

Record
UBUNTU-CVE-2016-4076
CVSS 3.0
5.9 MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVMGASA-2016-0153 No score

Updated wireshark packages fix security vulnerabilities

Updated wireshark packages fix security vulnerabilities:

The NCP dissector could crash (CVE-2016-4076).

TShark could crash due to a packet reassembly bug (CVE-2016-4077).

The IEEE 802.11 dissector could crash (CVE-2016-4078).

The PKTC dissector could crash (CVE-2016-4079).

The PKTC dissector could crash (CVE-2016-4080).

The IAX2 dissector could go into an infinite loop (CVE-2016-4081).

Wireshark and TShark could exhaust the stack (CVE-2016-4006).

The GSM CBCH dissector could crash (CVE-2016-4082).

MS-WSP dissector crash (CVE-2016-4083, CVE-2016-4084).

Record
MGASA-2016-0153
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
wireshark
Debian:12
 before 2.0.3+geed34f0-1
2.0.3+geed34f0-1
wireshark
Debian:13
 before 2.0.3+geed34f0-1
2.0.3+geed34f0-1
wireshark
Debian:14
 before 2.0.3+geed34f0-1
2.0.3+geed34f0-1
wireshark
Mageia:5
From an advisory covering 10 CVEs
 before 2.0.3-1.mga5
2.0.3-1.mga5
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

History

History
RecordedChangedSources
affected, facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

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

In short

CVE-2016-4076 is a medium vulnerability (CVSS 5.9) in Wireshark, published April 25, 2016. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.75%, the 77th percentile. Fixed in wireshark 2.0.3+geed34f0-1.

References

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