CVE-2026-15174: CWE-122: Heap-based Buffer Overflow in Wireshark Foundation Wireshark
Catapult DCT2000 protocol dissector crash in Wireshark 4.6.0 to 4.6.6 and 4.4.0 to 4.4.16 allows denial of service
AI Analysis
Technical Summary
CVE-2026-15174 is a heap-based buffer overflow vulnerability (CWE-122) in the Catapult DCT2000 protocol dissector component of Wireshark. It affects Wireshark versions 4.4.0 to 4.4.16 and 4.6.0 to 4.6.6. Successful exploitation causes the application to crash, leading to denial of service. The CVSS 3.1 base score is 5.5, reflecting local attack vector, low complexity, no privileges required, user interaction required, unchanged scope, and impact limited to availability.
Potential Impact
Exploitation of this vulnerability 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 the risk to availability disruption only.
Mitigation Recommendations
No official patch or remediation has been published yet. Patch status is not yet confirmed — check the Wireshark Foundation advisory for current remediation guidance. Until a fix is available, avoid processing untrusted Catapult DCT2000 protocol traffic or use alternative analysis methods.
CVE-2026-15174: CWE-122: Heap-based Buffer Overflow in Wireshark Foundation Wireshark
Description
Catapult DCT2000 protocol dissector crash in Wireshark 4.6.0 to 4.6.6 and 4.4.0 to 4.4.16 allows denial of service
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 (CWE-122) in the Catapult DCT2000 protocol dissector component of Wireshark. It affects Wireshark versions 4.4.0 to 4.4.16 and 4.6.0 to 4.6.6. Successful exploitation causes the application to crash, leading to denial of service. The CVSS 3.1 base score is 5.5, reflecting local attack vector, low complexity, no privileges required, user interaction required, unchanged scope, and impact limited to availability.
Potential Impact
Exploitation of this vulnerability 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 the risk to availability disruption only.
Mitigation Recommendations
No official patch or remediation has been published yet. Patch status is not yet confirmed — check the Wireshark Foundation advisory for current remediation guidance. Until a fix is available, avoid processing untrusted Catapult DCT2000 protocol traffic or use alternative analysis methods.
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: 07/16/2026, 10:16:56 UTC
Last updated: 08/22/2026, 10:52:07 UTC
Views: 78
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.