CVE-2020-15466

In Wireshark 3.2.0 to 3.2.4, the GVCP dissector could go into an infinite loop. This was...

7.5 HighFix available

In Wireshark 3.2.0 to 3.2.4, the GVCP dissector could go into an infinite loop. This was addressed in epan/dissectors/packet-gvcp.c by ensuring that an offset increases in all situations.

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

3.00%Up 1.3 points since Apr 14, 2021

What each source reports

NVD Score used 7.5

In Wireshark 3.2.0 to 3.2.4, the GVCP dissector could go into an infinite loop. This was addressed in epan/dissectors/packet-gvcp.c by ensuring that an offset increases in all situations.

Record: CVE-2020-15466
CVSS 3.1: 7.5 HighCVSS:3.1/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-835
Updated: 2026-11-02

CVE List No score

In Wireshark 3.2.0 to 3.2.4, the GVCP dissector could go into an infinite loop. This was addressed in epan/dissectors/packet-gvcp.c by ensuring that an offset increases in all situations.

Record: CVE-2020-15466
Updated: 2026-11-02

EUVDEUVD-2020-7459 No score

In Wireshark 3.2.0 to 3.2.4, the GVCP dissector could go into an infinite loop. This was addressed in epan/dissectors/packet-gvcp.c by ensuring that an offset increases in all situations.

Record: EUVD-2020-7459
Updated: 2026-11-03

GitHub AdvisoriesGHSA-v3q7-57mp-77xp No score

In Wireshark 3.2.0 to 3.2.4, the GVCP dissector could go into an infinite loop. This was...

In Wireshark 3.2.0 to 3.2.4, the GVCP dissector could go into an infinite loop. This was addressed in epan/dissectors/packet-gvcp.c by ensuring that an offset increases in all situations.

Record: GHSA-v3q7-57mp-77xp
Weakness: CWE-835
Updated: 2026-11-02

OSVALPINE-CVE-2020-15466 7.5

In Wireshark 3.2.0 to 3.2.4, the GVCP dissector could go into an infinite loop. This was addressed in epan/dissectors/packet-gvcp.c by ensuring that an offset increases in all situations.

Record: ALPINE-CVE-2020-15466
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-03

OSV 7.5

In Wireshark 3.2.0 to 3.2.4, the GVCP dissector could go into an infinite loop. This was addressed in epan/dissectors/packet-gvcp.c by ensuring that an offset increases in all situations.

Record: CVE-2020-15466
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

Show 7 moreShow less

OSVDEBIAN-CVE-2020-15466 7.5

In Wireshark 3.2.0 to 3.2.4, the GVCP dissector could go into an infinite loop. This was addressed in epan/dissectors/packet-gvcp.c by ensuring that an offset increases in all situations.

Record: DEBIAN-CVE-2020-15466
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVUBUNTU-CVE-2020-15466 7.5

In Wireshark 3.2.0 to 3.2.4, the GVCP dissector could go into an infinite loop. This was addressed in epan/dissectors/packet-gvcp.c by ensuring that an offset increases in all situations.

Record: UBUNTU-CVE-2020-15466
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVopenSUSE-SU-2020:1188-1 No score

Security update for wireshark

This update for wireshark fixes the following issues:

Wireshark to 3.2.5:
- CVE-2020-15466: GVCP dissector infinite loop (bsc#1173606)
- CVE-2020-13164: NFS dissector crash (bsc#1171899)
- CVE-2020-11647: The BACapp dissector could crash (bsc#1169063)
Further features, bug fixes and updated protocol support as listed in: https://www.wireshark.org/docs/relnotes/wireshark-3.2.5.html

This update was imported from the SUSE:SLE-15:Update update project.

Record: openSUSE-SU-2020:1188-1
Updated: 2026-11-02

OSVopenSUSE-SU-2020:1199-1 No score

Security update for wireshark

This update for wireshark fixes the following issues:

Wireshark to 3.2.5:
- CVE-2020-15466: GVCP dissector infinite loop (bsc#1173606)
- CVE-2020-13164: NFS dissector crash (bsc#1171899)
- CVE-2020-11647: The BACapp dissector could crash (bsc#1169063)
Further features, bug fixes and updated protocol support as listed in: https://www.wireshark.org/docs/relnotes/wireshark-3.2.5.html

This update was imported from the SUSE:SLE-15:Update update project.

Record: openSUSE-SU-2020:1199-1
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

OSVSUSE-SU-2020:2144-1 No score

Security update for wireshark

This update for wireshark fixes the following issues:

Wireshark to 3.2.5:
- CVE-2020-15466: GVCP dissector infinite loop (bsc#1173606)
- CVE-2020-13164: NFS dissector crash (bsc#1171899)
- CVE-2020-11647: The BACapp dissector could crash (bsc#1169063)
Further features, bug fixes and updated protocol support as listed in: https://www.wireshark.org/docs/relnotes/wireshark-3.2.5.html

Record: SUSE-SU-2020:2144-1
Updated: 2026-11-02

OSVUSN-6262-1 No score

wireshark vulnerabilities

It was discovered that Wireshark did not properly handle certain NFS packages when certain configuration options were enabled. An attacker could possibly use this issue to cause Wireshark to crash, resulting in a denial of service. (CVE-2020-13164)

It was discovered that Wireshark did not properly handle certain GVCP packages. An attacker could possibly use this issue to cause Wireshark to crash, resulting in a denial of service. This issue only affected Ubuntu 20.04 LTS. (CVE-2020-15466)

It was discovered that Wireshark did not properly handle certain Kafka packages. An attacker could possibly use this issue to cause Wireshark to crash, resulting in a denial of service. This issue only affected Ubuntu 20.04 LTS. (CVE-2020-17498)

It was discovered that Wireshark did not properly handle certain TCP packages containing an invalid 0xFFFF checksum. An attacker could possibly use this issue to cause Wireshark to crash, resulting in a denial of service. (CVE-2020-25862)

It was discovered that Wireshark did not properly handle certain MIME packages containing invalid parts. An attacker could possibly use this issue to cause Wireshark to crash, resulting in a denial of service. (CVE-2020-25863)

Record: USN-6262-1
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`wireshark` Alpine:v3.12	3.2.0 up to 3.2.5-r0	3.2.5-r0
`wireshark` Alpine:v3.13	3.2.0 up to 3.2.5-r0	3.2.5-r0
`wireshark` Alpine:v3.14	3.2.0 up to 3.2.5-r0	3.2.5-r0
`wireshark` Alpine:v3.15	3.2.0 up to 3.2.5-r0	3.2.5-r0
`wireshark` Alpine:v3.16	3.2.0 up to 3.2.5-r0	3.2.5-r0
`wireshark` Alpine:v3.17	3.2.0 up to 3.2.5-r0	3.2.5-r0
`wireshark` Alpine:v3.18	3.2.0 up to 3.2.5-r0	3.2.5-r0
`wireshark` Alpine:v3.19	3.2.0 up to 3.2.5-r0	3.2.5-r0
`wireshark` Alpine:v3.20	3.2.0 up to 3.2.5-r0	3.2.5-r0
`wireshark` Alpine:v3.21	3.2.0 up to 3.2.5-r0	3.2.5-r0

Show 19 moreShow less

Affected packages
Package	Affected	Fixed
`wireshark` Alpine:v3.22	3.2.0 up to 3.2.5-r0	3.2.5-r0
`wireshark` Alpine:v3.23	3.2.0 up to 3.2.5-r0	3.2.5-r0
`wireshark` Alpine:v3.24	3.2.0 up to 3.2.5-r0	3.2.5-r0
`wireshark` Debian:12	before 3.2.5-1	3.2.5-1
`wireshark` Debian:13	before 3.2.5-1	3.2.5-1
`wireshark` Debian:14	before 3.2.5-1	3.2.5-1
`wireshark` Debian:9 From an advisory covering 17 CVEs	before 2.6.20-0+deb9u1, plus listed versions 2.2.6+g32dac6a-22.2.6+g32dac6a-2+deb9u12.2.6+g32dac6a-2+deb9u22.2.6+g32dac6a-2+deb9u32.2.7-1 Show 24 moreShow less 2.4.0-12.4.1-12.4.2-12.4.3-12.4.4-12.4.5-12.4.6-12.6.1-12.6.10-12.6.2-12.6.2-22.6.3-12.6.3-1~deb9u12.6.4-12.6.4-22.6.5-12.6.5-1~deb9u12.6.6-12.6.7-12.6.7-1~deb9u12.6.8-12.6.8-1.12.6.8-1.1~deb9u12.6.9-1	2.6.20-0+deb9u1
`wireshark` SUSE:Linux Enterprise Module for Basesystem 15 SP1 From an advisory covering 3 CVEs	before 3.2.5-3.38.1	3.2.5-3.38.1
`wireshark` SUSE:Linux Enterprise Module for Basesystem 15 SP2 From an advisory covering 3 CVEs	before 3.2.5-3.38.1	3.2.5-3.38.1
`wireshark` SUSE:Linux Enterprise Module for Desktop Applications 15 SP1 From an advisory covering 3 CVEs	before 3.2.5-3.38.1	3.2.5-3.38.1
`wireshark` SUSE:Linux Enterprise Module for Desktop Applications 15 SP2 From an advisory covering 3 CVEs	before 3.2.5-3.38.1	3.2.5-3.38.1
`wireshark` Ubuntu:Pro:20.04:LTS	before 3.2.3-1ubuntu0.1~esm1, plus listed versions 3.0.5-13.0.7-13.2.1-13.2.2-13.2.3-1	3.2.3-1ubuntu0.1~esm1
`wireshark` Ubuntu:Pro:14.04:LTS From an advisory covering 5 CVEs	before 2.6.10-1~ubuntu14.04.0~esm2, plus listed versions 1.10.2-11.10.3-11.10.5-1ubuntu11.10.5-21.10.6-1 Show 7 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~esm1	2.6.10-1~ubuntu14.04.0~esm2
`wireshark` Ubuntu:Pro:16.04:LTS From an advisory covering 5 CVEs	before 2.6.10-1~ubuntu16.04.0+esm1, 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 6 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~ubuntu16.04.0	2.6.10-1~ubuntu16.04.0+esm1
`wireshark` Ubuntu:Pro:18.04:LTS From an advisory covering 5 CVEs	before 2.6.10-1~ubuntu18.04.0+esm1, plus listed versions 2.4.2-12.4.3-12.4.4-12.4.5-12.6.3-1~ubuntu18.04.1 Show 5 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~ubuntu18.04.0	2.6.10-1~ubuntu18.04.0+esm1
`wireshark` Ubuntu:Pro:20.04:LTS From an advisory covering 5 CVEs	before 3.2.3-1ubuntu0.1~esm1, plus listed versions 3.0.5-13.0.7-13.2.1-13.2.2-13.2.3-1	3.2.3-1ubuntu0.1~esm1
`wireshark` openSUSE:Leap 15.1 From an advisory covering 3 CVEs	before 3.2.5-lp151.2.12.1	3.2.5-lp151.2.12.1
`wireshark` openSUSE:Leap 15.2 From an advisory covering 3 CVEs	before 3.2.5-lp152.2.3.1	3.2.5-lp152.2.3.1
`wireshark` openSUSE:Tumbleweed From an advisory covering 163 CVEs	before 3.4.8-1.2	3.4.8-1.2

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected, facts
Nov 3, 2026	affected, aliases, references	OSV
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-2020-15466 is a high vulnerability (CVSS 7.5) in Wireshark, published July 5, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.00%, the 87th percentile. Fixed in wireshark 3.2.5-r0.

References

Show 182 moreShow less