CVE-2026-15174: CWE-122: Heap-based Buffer Overflow in Wireshark Foundation Wireshark
A heap-based buffer overflow vulnerability exists in the Catapult DCT2000 protocol dissector in Wireshark versions 4.4.0 through 4.4.16 and 4.6.0 through 4.6.6. This flaw can cause the application to crash, resulting in a denial of service condition. The vulnerability has a medium severity rating with a CVSS score of 5.5. No official patch or remediation guidance is currently provided by the vendor.
AI Analysis
Technical Summary
CVE-2026-15174 is a heap-based buffer overflow vulnerability in the Catapult DCT2000 protocol dissector of Wireshark versions 4.4.0 to 4.4.16 and 4.6.0 to 4.6.6. This vulnerability can be triggered to cause a crash of the Wireshark application, leading to denial of service. The CVSS 3.1 vector indicates the attack requires local access with low complexity and no privileges but requires user interaction. There is no confidentiality or integrity impact, only availability is affected. No patch or official remediation level has been published as of the data provided.
Potential Impact
Successful exploitation results in denial of service by crashing the Wireshark application. There is no impact on confidentiality or integrity. The attack requires local access and user interaction, limiting remote exploitation potential.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, users should avoid processing untrusted Catapult DCT2000 protocol data in affected Wireshark versions. Monitor vendor communications for updates on patches or mitigations.
CVE-2026-15174: CWE-122: Heap-based Buffer Overflow in Wireshark Foundation Wireshark
Description
A heap-based buffer overflow vulnerability exists in the Catapult DCT2000 protocol dissector in Wireshark versions 4.4.0 through 4.4.16 and 4.6.0 through 4.6.6. This flaw can cause the application to crash, resulting in a denial of service condition. The vulnerability has a medium severity rating with a CVSS score of 5.5. No official patch or remediation guidance is currently provided by the vendor.
CVSS v3.1
Score 5.5medium
Affected software
pkg:github/wireshark/wiresharkRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-15174 is a heap-based buffer overflow vulnerability in the Catapult DCT2000 protocol dissector of Wireshark versions 4.4.0 to 4.4.16 and 4.6.0 to 4.6.6. This vulnerability can be triggered to cause a crash of the Wireshark application, leading to denial of service. The CVSS 3.1 vector indicates the attack requires local access with low complexity and no privileges but requires user interaction. There is no confidentiality or integrity impact, only availability is affected. No patch or official remediation level has been published as of the data provided.
Potential Impact
Successful exploitation results in denial of service by crashing the Wireshark application. There is no impact on confidentiality or integrity. The attack requires local access and user interaction, limiting remote exploitation potential.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, users should avoid processing untrusted Catapult DCT2000 protocol data in affected Wireshark versions. Monitor vendor communications for updates on patches or mitigations.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitLab
- Date Reserved
- 2026-07-08T20:46:08.884Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a4ebdf5c9d9e3dbe3bf8aea
Added to database: 07/08/2026, 21:15:33 UTC
Last enriched: 07/08/2026, 21:29:26 UTC
Last updated: 07/08/2026, 22:29:10 UTC
Views: 8
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