CVE-2026-6527: CWE-674: Uncontrolled Recursion in Wireshark Foundation Wireshark
ASN.1 PER protocol dissector crash in Wireshark 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-2026-6527) affects the Wireshark network protocol analyzer in versions 4.4.0 through 4.4.14 and 4.6.0 through 4.6.4. It is caused by uncontrolled recursion in the ASN.1 PER protocol dissector, which can lead to a crash of the application when processing crafted packets. The issue is classified under CWE-674 (Uncontrolled Recursion). The CVSS 3.1 base score is 5.5, indicating a medium severity denial of service impact with local attack vector, low attack complexity, no privileges required, and user interaction needed.
Potential Impact
Successful 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 to trigger the crash. No known exploits are currently reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should avoid opening untrusted ASN.1 PER protocol data in affected Wireshark versions. Monitor Wireshark Foundation communications for updates and apply patches promptly once available.
CVE-2026-6527: CWE-674: Uncontrolled Recursion in Wireshark Foundation Wireshark
Description
ASN.1 PER protocol dissector crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-6527) affects the Wireshark network protocol analyzer in versions 4.4.0 through 4.4.14 and 4.6.0 through 4.6.4. It is caused by uncontrolled recursion in the ASN.1 PER protocol dissector, which can lead to a crash of the application when processing crafted packets. The issue is classified under CWE-674 (Uncontrolled Recursion). The CVSS 3.1 base score is 5.5, indicating a medium severity denial of service impact with local attack vector, low attack complexity, no privileges required, and user interaction needed.
Potential Impact
Successful 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 to trigger the crash. No known exploits are currently reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should avoid opening untrusted ASN.1 PER protocol data in affected Wireshark versions. Monitor Wireshark Foundation communications for updates and apply patches promptly once available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitLab
- Date Reserved
- 2026-04-17T15:05:47.696Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69f2f4e9cbff5d8610970bcd
Added to database: 4/30/2026, 6:21:29 AM
Last enriched: 4/30/2026, 6:37:54 AM
Last updated: 5/1/2026, 1:15:58 AM
Views: 9
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