CVE-2026-19696: CWE-787: Out-of-bounds Write in Wireshark Foundation Wireshark
CVE-2026-19696 is an out-of-bounds write vulnerability in Wireshark affecting the Ixia IxVeriWave and Vector Informatik BLF file parsers. It impacts Wireshark version 4.6.0 and can cause application crashes leading to denial of service on Windows systems. The vulnerability has a medium severity rating with a CVSS score of 6.6. No official patch or remediation guidance has been provided yet.
AI Analysis
Technical Summary
This vulnerability (CWE-787) involves an out-of-bounds write in the BLF file parsers for Ixia IxVeriWave and Vector Informatik within Wireshark version 4.6.0. Exploiting this flaw can cause the application to crash, resulting in denial of service on Windows platforms. The CVSS 3.1 vector indicates local attack vector, low attack complexity, no privileges required, user interaction required, unchanged scope, low confidentiality and integrity impact, and high availability impact. There is no known exploit in the wild and no vendor advisory or patch currently available.
Potential Impact
Successful exploitation leads to denial of service by crashing Wireshark when processing crafted BLF files. Confidentiality and integrity impacts are low, but availability is significantly affected due to application crashes. The attack requires local access and user interaction.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, avoid opening untrusted BLF files from Ixia IxVeriWave and Vector Informatik in Wireshark 4.6.0 on Windows systems.
CVE-2026-19696: CWE-787: Out-of-bounds Write in Wireshark Foundation Wireshark
Description
CVE-2026-19696 is an out-of-bounds write vulnerability in Wireshark affecting the Ixia IxVeriWave and Vector Informatik BLF file parsers. It impacts Wireshark version 4.6.0 and can cause application crashes leading to denial of service on Windows systems. The vulnerability has a medium severity rating with a CVSS score of 6.6. No official patch or remediation guidance has been provided yet.
CVSS v3.1
Score 6.6medium
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
This vulnerability (CWE-787) involves an out-of-bounds write in the BLF file parsers for Ixia IxVeriWave and Vector Informatik within Wireshark version 4.6.0. Exploiting this flaw can cause the application to crash, resulting in denial of service on Windows platforms. The CVSS 3.1 vector indicates local attack vector, low attack complexity, no privileges required, user interaction required, unchanged scope, low confidentiality and integrity impact, and high availability impact. There is no known exploit in the wild and no vendor advisory or patch currently available.
Potential Impact
Successful exploitation leads to denial of service by crashing Wireshark when processing crafted BLF files. Confidentiality and integrity impacts are low, but availability is significantly affected due to application crashes. The attack requires local access and user interaction.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, avoid opening untrusted BLF files from Ixia IxVeriWave and Vector Informatik in Wireshark 4.6.0 on Windows systems.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitLab
- Date Reserved
- 2026-08-13T07:35:09.042Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a7d7fbfbf8831d539e875a4
Added to database: 08/13/2026, 08:26:39 UTC
Last enriched: 08/13/2026, 08:44:33 UTC
Last updated: 08/13/2026, 09:18:11 UTC
Views: 6
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