CVE-2026-95387: CWE-122: Heap-based Buffer Overflow in Wireshark Foundation Wireshark
SPDY protocol dissector 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 involves a heap-based buffer overflow in the SPDY protocol dissector component of Wireshark Foundation's Wireshark software. It affects versions 4.4.0 up to but not including 4.4.19, and 4.6.0 up to but not including 4.6.9. Exploitation leads to a crash of the dissector, causing denial of service. The CVSS v3.1 base score is 8.1, indicating a high severity with network attack vector, high complexity, no privileges required, no user interaction, and impacts on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation results in denial of service due to application crash. The vulnerability impacts confidentiality, integrity, and availability as indicated by the CVSS vector, but the primary observed effect is denial of service through crash of the SPDY dissector.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are provided in the current data. Users should monitor Wireshark Foundation advisories for updates and apply patches once available.
CVE-2026-95387: CWE-122: Heap-based Buffer Overflow in Wireshark Foundation Wireshark
Description
SPDY protocol dissector 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 8.1high
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 involves a heap-based buffer overflow in the SPDY protocol dissector component of Wireshark Foundation's Wireshark software. It affects versions 4.4.0 up to but not including 4.4.19, and 4.6.0 up to but not including 4.6.9. Exploitation leads to a crash of the dissector, causing denial of service. The CVSS v3.1 base score is 8.1, indicating a high severity with network attack vector, high complexity, no privileges required, no user interaction, and impacts on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation results in denial of service due to application crash. The vulnerability impacts confidentiality, integrity, and availability as indicated by the CVSS vector, but the primary observed effect is denial of service through crash of the SPDY dissector.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are provided in the current data. Users should monitor Wireshark Foundation advisories for updates and apply patches once available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitLab
- Date Reserved
- 2026-09-22T05:34:01.677Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6abb897df7a7c54106284f23
Added to database: 09/29/2026, 09:48:45 UTC
Last enriched: 09/29/2026, 10:02:47 UTC
Last updated: 09/29/2026, 18:20:12 UTC
Views: 12
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