CVE-2026-96420: CWE-126: Buffer Over-read in Wireshark Foundation Wireshark
Toshiba file parser crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service
AI Analysis
Technical Summary
This vulnerability, identified as CWE-126 (Buffer Over-read), exists in the Toshiba file parser component of Wireshark versions 4.4.0 to 4.4.18 and 4.6.0 to 4.6.8. An attacker can cause the application to crash by triggering this flaw, leading to denial of service. The CVSS 3.1 base score is 4.7, indicating medium severity with local attack vector, high attack complexity, no privileges required, user interaction required, and impact limited to availability.
Potential Impact
Successful exploitation results in denial of service due to application crash. There is no impact on confidentiality or integrity according to the CVSS vector. The attack requires local access and user interaction, and has high complexity, reducing the likelihood of exploitation.
Mitigation Recommendations
No explicit patch or remediation details are provided in the input data. Patch status is not yet confirmed — check the Wireshark Foundation vendor advisory for current remediation guidance. Users should consider upgrading to versions later than 4.4.18 and 4.6.8 once official fixes are released.
CVE-2026-96420: CWE-126: Buffer Over-read in Wireshark Foundation Wireshark
Description
Toshiba file parser crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service
CVSS v3.1
Score 4.7medium
Affected software
Wireshark Foundation
Wireshark
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, identified as CWE-126 (Buffer Over-read), exists in the Toshiba file parser component of Wireshark versions 4.4.0 to 4.4.18 and 4.6.0 to 4.6.8. An attacker can cause the application to crash by triggering this flaw, leading to denial of service. The CVSS 3.1 base score is 4.7, indicating medium severity with local attack vector, high attack complexity, no privileges required, user interaction required, and impact limited to availability.
Potential Impact
Successful exploitation results in denial of service due to application crash. There is no impact on confidentiality or integrity according to the CVSS vector. The attack requires local access and user interaction, and has high complexity, reducing the likelihood of exploitation.
Mitigation Recommendations
No explicit patch or remediation details are provided in the input data. Patch status is not yet confirmed — check the Wireshark Foundation vendor advisory for current remediation guidance. Users should consider upgrading to versions later than 4.4.18 and 4.6.8 once official fixes are released.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitLab
- Date Reserved
- 2026-09-23T05:41:45.659Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6abb897ef7a7c54106284f35
Added to database: 09/29/2026, 09:48:46 UTC
Last enriched: 09/29/2026, 10:03:35 UTC
Last updated: 09/29/2026, 18:20:12 UTC
Views: 12
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