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UBUNTU-CVE-2026-15174

0
Medium
VulnerabilityCVE-2026-15174gcveosvubuntu-cve-2026-15174ubuntu-pro-14-04-ltsubuntu-pro-16-04-ltsubuntu-pro-18-04-ltsubuntu-pro-20-04-ltsubuntu-pro-22-04-ltsubuntu-24-04-ltsubuntu-25-10ubuntu-26-04-lts
Published: 07/08/2026 (07/08/2026, 21:16:00 UTC)
Source: GCVE Database
Product: wireshark

Description

A vulnerability in the Catapult DCT2000 protocol dissector in Wireshark versions 4.4.0 to 4.4.16 and 4.6.0 to 4.6.6 can cause the application to crash, resulting in a denial of service condition. This affects multiple Ubuntu package versions of Wireshark. The vulnerability requires local access and user interaction to trigger.

CVSS v3.1

Score 5.5medium

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected software

Ubuntu:Pro:14.04:LTSmore threats →ghsa
wireshark
pkg:deb/ubuntu/[email protected]~ubuntu14.04.0~esm3?arch=source&distro=esm-infra-legacy/trusty
Affected versions
=1.10.2-1=1.10.3-1=1.10.5-1ubuntu1=1.10.5-2=1.10.6-1=1.12.1+g01b65bf-4+deb8u11ubuntu0.14.04.1=2.6.3-1~ubuntu14.04.1=2.6.4-2~ubuntu14.04.1=2.6.5-1~ubuntu14.04.1=2.6.6-1~ubuntu14.04.0=2.6.8-1~ubuntu14.04.0~esm1=2.6.10-1~ubuntu14.04.0~esm1=2.6.10-1~ubuntu14.04.0~esm2=2.6.10-1~ubuntu14.04.0~esm3
Ubuntu:Pro:16.04:LTSmore threats →ghsa
wireshark
pkg:deb/ubuntu/[email protected]~ubuntu16.04.0+esm2?arch=source&distro=esm-apps/xenial
Affected versions
=1.12.7+g7fc8978-1=1.12.8+g5b6e543-2=2.0.1+g59ea380-3build1=2.0.2+ga16e22e-1=2.2.6+g32dac6a-2ubuntu0.16.04=2.6.3-1~ubuntu16.04.1=2.6.4-2~ubuntu16.04.0=2.6.5-1~ubuntu16.04.0=2.6.6-1~ubuntu16.04.0=2.6.8-1~ubuntu16.04.0=2.6.10-1~ubuntu16.04.0=2.6.10-1~ubuntu16.04.0+esm1=2.6.10-1~ubuntu16.04.0+esm2
Ubuntu:Pro:18.04:LTSmore threats →ghsa
wireshark
pkg:deb/ubuntu/[email protected]~ubuntu18.04.0+esm2?arch=source&distro=esm-apps/bionic
Affected versions
=2.4.2-1=2.4.3-1=2.4.4-1=2.4.5-1=2.6.3-1~ubuntu18.04.1=2.6.4-2~ubuntu18.04.0=2.6.5-1~ubuntu18.04.0=2.6.6-1~ubuntu18.04.0=2.6.8-1~ubuntu18.04.0=2.6.10-1~ubuntu18.04.0=2.6.10-1~ubuntu18.04.0+esm1=2.6.10-1~ubuntu18.04.0+esm2
Ubuntu:Pro:20.04:LTSmore threats →ghsa
wireshark
pkg:deb/ubuntu/[email protected]~esm2?arch=source&distro=esm-apps/focal
Affected versions
=3.0.5-1=3.0.7-1=3.2.1-1=3.2.2-1=3.2.3-1=3.2.3-1ubuntu0.1~esm1=3.2.3-1ubuntu0.1~esm2
Ubuntu:Pro:22.04:LTSmore threats →ghsa
wireshark
pkg:deb/ubuntu/[email protected]~esm1?arch=source&distro=esm-apps/jammy
Affected versions
=3.4.7-1~exp1=3.4.9-1=3.6.2-1ubuntu1=3.6.2-2=3.6.2-2ubuntu0.1~esm1
Ubuntu:24.04:LTSmore threats →ghsa
wireshark
pkg:deb/ubuntu/[email protected]?arch=source&distro=noble
Affected versions
=4.0.8-1=4.0.10-1=4.0.11-1=4.2.0-1=4.2.2-1=4.2.2-1.1build1=4.2.2-1.1build2=4.2.2-1.1build3
Ubuntu:25.10more threats →ghsa
wireshark
pkg:deb/ubuntu/[email protected]?arch=source&distro=questing
Affected versions
=4.4.5-1=4.4.6-2=4.4.6-2build1=4.4.7-1
Ubuntu:26.04:LTSmore threats →ghsa
wireshark
pkg:deb/ubuntu/[email protected]?arch=source&distro=resolute
Affected versions
=4.4.7-1=4.6.0-1=4.6.1-2=4.6.2-3=4.6.3-1=4.6.4-1

Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 07/16/2026, 13:56:22 UTC

Technical Analysis

Wireshark versions 4.4.0 through 4.4.16 and 4.6.0 through 4.6.6 contain a vulnerability in the Catapult DCT2000 protocol dissector that can be triggered to cause a crash, leading to denial of service. This affects multiple Ubuntu package versions of Wireshark as listed. The vulnerability does not impact confidentiality or integrity but results in availability loss due to application crash. There is no indication of known exploits in the wild. Patch status is not confirmed as no patch or vendor advisory is provided.

Potential Impact

Successful exploitation causes a denial of service by crashing Wireshark when processing Catapult DCT2000 protocol data. There is no impact on confidentiality or integrity. The vulnerability requires local access (AV:L) and user interaction (UI:R) to trigger, with low attack complexity (AC:L) and no privileges required (PR:N).

Mitigation Recommendations

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a patch is available, avoid processing untrusted Catapult DCT2000 protocol data in affected Wireshark versions to prevent crashes.

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Technical Details

Gcve Source
db.gcve.eu
Osv Id
UBUNTU-CVE-2026-15174
Osv Schema Version
1.7.0
Aliases
[]
Ecosystems
["Ubuntu:Pro:14.04:LTS","Ubuntu:Pro:16.04:LTS","Ubuntu:Pro:18.04:LTS","Ubuntu:Pro:20.04:LTS","Ubuntu:Pro:22.04:LTS","Ubuntu:24.04:LTS","Ubuntu:25.10","Ubuntu:26.04:LTS"]
Database Specific Severity
null
Cvss Version
3.1

Threat ID: 6a58b4f168715ace43db1dc5

Added to database: 07/16/2026, 10:39:45 UTC

Last enriched: 07/16/2026, 13:56:22 UTC

Last updated: 07/31/2026, 19:24:48 UTC

Views: 5

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