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CVE-2026-95388

Heap-based Buffer Overflow in Wireshark

5.5 MediumFix available

Sharkd utility crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

0.14%Unchanged since Sep 29, 2026
90%50%10%1%

What each source reports

CVE List Score used 5.5

Heap-based Buffer Overflow in Wireshark

Sharkd utility crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service

Record
CVE-2026-95388
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness
CWE-122
Updated
2026-11-02
EUVDEUVD-2026-88707 5.5

Sharkd utility crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service

Record
EUVD-2026-88707
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02
GitHub AdvisoriesGHSA-xc7p-ghhr-9vx9 5.5

Sharkd utility crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service

Sharkd utility crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service

Record
GHSA-xc7p-ghhr-9vx9
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness
CWE-122
Updated
2026-11-02
NVD 5.5

Sharkd utility crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service

Record
CVE-2026-95388
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness
CWE-122
Updated
2026-11-02
OSV 5.5

Heap-based Buffer Overflow in Wireshark

Sharkd utility crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service

Record
CVE-2026-95388
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness
CWE-122
Updated
2026-11-02
OSVDEBIAN-CVE-2026-95388 5.5

Sharkd utility crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service

Record
DEBIAN-CVE-2026-95388
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02
Show 8 moreShow less
OSVOESA-2026-4227 5.5

wireshark security update

Wireshark allows you to examine protocol data stored in files or as it is captured from wired or wireless (WiFi or Bluetooth) networks, USB devices, and many other sources. It supports dozens of protocol capture file formats and understands more than a thousand protocols.

Security Fix(es):

SPDY protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-95387)

Sharkd utility crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-95388)

SCTP protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-95389)

MBIM protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-95392)

CSN.1 protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-95393)

Microsoft Network Monitor file parser large loop in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-95394)

IEEE C37.118 Synchrophasor protocol dissector memory leak in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-95395)

Catapult DCT2000 protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-96415)

IEEE 802.11 protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-96416)

RF4CE protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-96417)

TIFF protocol dissector infinite loop in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-96418)

Profile import crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service and possible code execution(CVE-2026-96419)

Toshiba file parser crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-96420)

USB HID protocol dissector infinite loop and memory leak in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-96421)

Frame protocol metadissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-96422)

X11 protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-96423)

Record
OESA-2026-4227
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVOESA-2026-4228 5.5

wireshark security update

Wireshark allows you to examine protocol data stored in files or as it is captured from wired or wireless (WiFi or Bluetooth) networks, USB devices, and many other sources. It supports dozens of protocol capture file formats and understands more than a thousand protocols.

Security Fix(es):

SPDY protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-95387)

Sharkd utility crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-95388)

SCTP protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-95389)

MBIM protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-95392)

CSN.1 protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-95393)

Microsoft Network Monitor file parser large loop in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-95394)

IEEE C37.118 Synchrophasor protocol dissector memory leak in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-95395)

Catapult DCT2000 protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-96415)

IEEE 802.11 protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-96416)

RF4CE protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-96417)

TIFF protocol dissector infinite loop in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-96418)

Profile import crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service and possible code execution(CVE-2026-96419)

Toshiba file parser crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-96420)

USB HID protocol dissector infinite loop and memory leak in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-96421)

Frame protocol metadissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-96422)

X11 protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-96423)

Record
OESA-2026-4228
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVOESA-2026-4229 5.5

wireshark security update

Wireshark allows you to examine protocol data stored in files or as it is captured from wired or wireless (WiFi or Bluetooth) networks, USB devices, and many other sources. It supports dozens of protocol capture file formats and understands more than a thousand protocols.

Security Fix(es):

SPDY protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-95387)

Sharkd utility crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-95388)

SCTP protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-95389)

MBIM protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-95392)

CSN.1 protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-95393)

Microsoft Network Monitor file parser large loop in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-95394)

IEEE C37.118 Synchrophasor protocol dissector memory leak in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-95395)

Catapult DCT2000 protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-96415)

IEEE 802.11 protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-96416)

RF4CE protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-96417)

TIFF protocol dissector infinite loop in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-96418)

Profile import crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service and possible code execution(CVE-2026-96419)

Toshiba file parser crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-96420)

USB HID protocol dissector infinite loop and memory leak in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-96421)

Frame protocol metadissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-96422)

X11 protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-96423)

Record
OESA-2026-4229
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVOESA-2026-4230 5.5

wireshark security update

Wireshark allows you to examine protocol data stored in files or as it is captured from wired or wireless (WiFi or Bluetooth) networks, USB devices, and many other sources. It supports dozens of protocol capture file formats and understands more than a thousand protocols.

Security Fix(es):

SPDY protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-95387)

Sharkd utility crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-95388)

SCTP protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-95389)

MBIM protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-95392)

CSN.1 protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-95393)

Microsoft Network Monitor file parser large loop in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-95394)

IEEE C37.118 Synchrophasor protocol dissector memory leak in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-95395)

Catapult DCT2000 protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-96415)

IEEE 802.11 protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-96416)

RF4CE protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-96417)

TIFF protocol dissector infinite loop in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-96418)

Profile import crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service and possible code execution(CVE-2026-96419)

Toshiba file parser crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-96420)

USB HID protocol dissector infinite loop and memory leak in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-96421)

Frame protocol metadissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-96422)

X11 protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service(CVE-2026-96423)

Record
OESA-2026-4230
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2026-95388 5.5

Sharkd utility crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service

Record
UBUNTU-CVE-2026-95388
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVAZL-105018 No score

CVE-2026-95388 affecting package wireshark 4.4.7-2

Sharkd utility crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service

Record
AZL-105018
Updated
2026-11-05
OSVMGASA-2026-0493 No score

Updated wireshark package fixes security vulnerabilities

Loop with Unreachable Exit Condition ('Infinite Loop') in Wireshark. (CVE-2026-95386) Heap-based Buffer Overflow in Wireshark. (CVE-2026-95387) Heap-based Buffer Overflow in Wireshark. (CVE-2026-95388) Heap-based Buffer Overflow in Wireshark. (CVE-2026-95389) NULL Pointer Dereference in Wireshark. (CVE-2026-95390) Use After Free in Wireshark. (CVE-2026-95391) Buffer Over-read in Wireshark. (CVE-2026-95392) Heap-based Buffer Overflow in Wireshark. (CVE-2026-95393) Unchecked Input for Loop Condition in Wireshark. (CVE-2026-95394) Missing Release of Memory after Effective Lifetime in Wireshark. (CVE-2026-95395) The Catapult DCT2000 protocol dissector could crash. (CVE-2026-96415) The IEEE 802.11 protocol dissector could crash. (CVE-2026-96416) The RF4CE protocol dissector could crash. (CVE-2026-96417) The TIFF protocol dissector could go into an infinite loop. (CVE-2026-96418) Importing a crafted configuration profile could crash Wireshark or execute arbitrary code. (CVE-2026-96419) The Toshiba file parser could crash. (CVE-2026-96420) The USB HID protocol dissector could go into an infinite loop and leak memory. (CVE-2026-96421) The Frame protocol metadissector could crash. (CVE-2026-96422) The X11 protocol dissector could crash. (CVE-2026-96423)

Record
MGASA-2026-0493
Updated
2026-11-02
OSVopenSUSE-SU-2026:11912-1 No score

libwireshark19-4.6.9-1.1 on GA media

These are all security issues fixed in the libwireshark19-4.6.9-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2026:11912-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
wireshark
Azure Linux:3
 through 4.4.7-2 None known
wireshark
Debian:12
 All versions, plus listed versions
4.0.10-14.0.11-14.0.11-1~deb12u14.0.17-0+deb12u14.0.17-0+deb12u2
Show 45 moreShow less
4.0.17-0+deb12u34.0.3-14.0.5-1~exp14.0.6-14.0.6-1~deb12u14.0.6-1~exp14.0.7-14.0.8-14.2.0-14.2.0-1~exp04.2.0~rc3-1~exp14.2.2-14.2.2-1.14.2.2-1.1~exp14.2.4-14.2.5-14.2.5-24.2.6-14.4.0-0exp14.4.0-0exp24.4.0-14.4.1-14.4.2-14.4.3-14.4.4-14.4.5-14.4.6-14.4.6-24.4.7-0exp14.4.7-14.4.8-0exp14.4.9-14.6.0-0exp14.6.0-14.6.0~rc1-0exp14.6.0~rc1-0exp24.6.1-14.6.1-24.6.2-14.6.2-34.6.3-14.6.4-14.6.5-14.6.6-14.6.6-2
 None known
wireshark
Debian:13
 before 4.4.19-0+deb13u1, plus listed versions
4.4.13-0+deb13u14.4.14-0+deb13u14.4.15-0+deb13u14.4.16-0+deb13u14.4.18-0+deb13u14.4.7-14.4.8-0exp14.4.9-1
4.4.19-0+deb13u1
wireshark
Debian:14
 before 4.6.9-1, plus listed versions
4.4.7-14.4.8-0exp14.4.9-14.6.0-0exp14.6.0-1
Show 11 moreShow less
4.6.0~rc1-0exp14.6.0~rc1-0exp24.6.1-14.6.1-24.6.2-14.6.2-34.6.3-14.6.4-14.6.5-14.6.6-14.6.6-2
4.6.9-1
wireshark
Mageia:10
From an advisory covering 19 CVEs
 before 4.6.9-1.mga10
4.6.9-1.mga10
wireshark
openEuler:22.03-LTS-SP4
From an advisory covering 16 CVEs
 before 4.4.19-1.oe2203sp4
4.4.19-1.oe2203sp4
wireshark
openEuler:24.03-LTS-SP1
From an advisory covering 16 CVEs
 before 4.4.19-1.oe2403sp1
4.4.19-1.oe2403sp1
wireshark
openEuler:24.03-LTS-SP3
From an advisory covering 16 CVEs
 before 4.4.19-1.oe2403sp3
4.4.19-1.oe2403sp3
wireshark
openEuler:24.03-LTS-SP4
From an advisory covering 16 CVEs
 before 4.4.19-1.oe2403sp4
4.4.19-1.oe2403sp4
wireshark
Ubuntu:Pro:14.04:LTS
 All versions, plus listed versions
1.10.2-11.10.3-11.10.5-1ubuntu11.10.5-21.10.6-1
Show 9 moreShow less
1.12.1+g01b65bf-4+deb8u11ubuntu0.14.04.12.6.3-1~ubuntu14.04.12.6.4-2~ubuntu14.04.12.6.5-1~ubuntu14.04.12.6.6-1~ubuntu14.04.02.6.8-1~ubuntu14.04.0~esm12.6.10-1~ubuntu14.04.0~esm12.6.10-1~ubuntu14.04.0~esm22.6.10-1~ubuntu14.04.0~esm3
 None known
Show 8 moreShow less
Affected packages
PackageAffectedFixed
wireshark
Ubuntu:Pro:16.04:LTS
 All versions, 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
Show 8 moreShow less
2.6.3-1~ubuntu16.04.12.6.4-2~ubuntu16.04.02.6.5-1~ubuntu16.04.02.6.6-1~ubuntu16.04.02.6.8-1~ubuntu16.04.02.6.10-1~ubuntu16.04.02.6.10-1~ubuntu16.04.0+esm12.6.10-1~ubuntu16.04.0+esm2
 None known
wireshark
Ubuntu:Pro:18.04:LTS
 All versions, plus listed versions
2.4.2-12.4.3-12.4.4-12.4.5-12.6.3-1~ubuntu18.04.1
Show 7 moreShow less
2.6.4-2~ubuntu18.04.02.6.5-1~ubuntu18.04.02.6.6-1~ubuntu18.04.02.6.8-1~ubuntu18.04.02.6.10-1~ubuntu18.04.02.6.10-1~ubuntu18.04.0+esm12.6.10-1~ubuntu18.04.0+esm2
 None known
wireshark
Ubuntu:Pro:20.04:LTS
 All versions, plus listed versions
3.0.5-13.0.7-13.2.1-13.2.2-13.2.3-13.2.3-1ubuntu0.1~esm13.2.3-1ubuntu0.1~esm2
 None known
wireshark
Ubuntu:Pro:22.04:LTS
 All versions, plus listed versions
3.4.7-1~exp13.4.9-13.6.2-1ubuntu13.6.2-23.6.2-2ubuntu0.1~esm1
 None known
wireshark
Ubuntu:24.04:LTS
 All versions, plus listed versions
4.0.8-14.0.10-14.0.11-14.2.0-14.2.2-14.2.2-1.1build14.2.2-1.1build24.2.2-1.1build3
 None known
wireshark
Ubuntu:26.10
 All versions, plus listed versions
4.6.4-14.6.6-14.6.6-24.6.6-2build1
 None known
wireshark
Ubuntu:26.04:LTS
 All versions, plus listed versions
4.4.7-14.6.0-14.6.1-24.6.2-34.6.3-14.6.4-1
 None known
wireshark
openSUSE:Tumbleweed
From an advisory covering 19 CVEs
 before 4.6.9-1.1
4.6.9-1.1

History

History
RecordedChangedSources
affected
factsOSV
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

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

In short

CVE-2026-95388 is a medium vulnerability (CVSS 5.5) in Wireshark, published September 28, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.14%, the 3rd percentile. Fixed in wireshark 4.4.19-0+deb13u1.

References

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Left out here: 1 version. The JSON record has them.

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