CVE-2026-7376: CWE-476: NULL Pointer Dereference in Wireshark Foundation Wireshark
Crash in sharkd 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service
AI Analysis
Technical Summary
This vulnerability (CVE-2026-7376) affects Wireshark Foundation's Wireshark software, specifically versions 4.6.0 through 4.6.4 and 4.4.0 through 4.4.14. It is caused by a NULL pointer dereference in the sharkd component, which leads to a crash and denial of service condition. The CVSS 3.1 base score is 5.5 (medium), with attack vector local, low attack complexity, no privileges required, user interaction required, and impact limited to availability. No patch or vendor advisory indicating remediation is currently available.
Potential Impact
Successful exploitation causes a denial of service by crashing the sharkd process, disrupting normal operation of Wireshark. There is no impact on confidentiality or integrity reported. The attack requires local access and user interaction, limiting the scope of exploitation.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, users should limit access to the affected versions and avoid untrusted input that could trigger the crash. Monitor official Wireshark Foundation communications for updates on patches or workarounds.
CVE-2026-7376: CWE-476: NULL Pointer Dereference in Wireshark Foundation Wireshark
Description
Crash in sharkd 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service
CVSS v3.1
Score 5.5medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-7376) affects Wireshark Foundation's Wireshark software, specifically versions 4.6.0 through 4.6.4 and 4.4.0 through 4.4.14. It is caused by a NULL pointer dereference in the sharkd component, which leads to a crash and denial of service condition. The CVSS 3.1 base score is 5.5 (medium), with attack vector local, low attack complexity, no privileges required, user interaction required, and impact limited to availability. No patch or vendor advisory indicating remediation is currently available.
Potential Impact
Successful exploitation causes a denial of service by crashing the sharkd process, disrupting normal operation of Wireshark. There is no impact on confidentiality or integrity reported. The attack requires local access and user interaction, limiting the scope of exploitation.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, users should limit access to the affected versions and avoid untrusted input that could trigger the crash. Monitor official Wireshark Foundation communications for updates on patches or workarounds.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitLab
- Date Reserved
- 2026-04-29T07:34:06.177Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69f2e6f2cbff5d861093cb82
Added to database: 4/30/2026, 5:21:54 AM
Last enriched: 5/8/2026, 1:54:34 AM
Last updated: 6/14/2026, 11:56:50 AM
Views: 65
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