CVE-2026-6523: CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') in Wireshark Foundation Wireshark
GNW protocol dissector infinite loop 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 in Wireshark's GNW protocol dissector causes an infinite loop due to a loop with an unreachable exit condition, leading to denial of service. It affects Wireshark versions 4.6.0 through 4.6.4 and 4.4.0 through 4.4.14. The CVSS 3.1 base score is 5.5, indicating medium severity, with the attack vector being local and requiring user interaction. No integrity or confidentiality impact is noted, only availability is affected. No vendor advisory or patch information is currently available, and no known exploits are reported in the wild.
Potential Impact
Successful exploitation results in denial of service by causing Wireshark to enter an infinite loop when processing GNW protocol data. This impacts availability of the affected application but does not affect confidentiality or integrity.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, avoid processing untrusted GNW protocol traffic in the affected Wireshark versions. Monitor vendor communications for updates.
CVE-2026-6523: CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') in Wireshark Foundation Wireshark
Description
GNW protocol dissector infinite loop 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 in Wireshark's GNW protocol dissector causes an infinite loop due to a loop with an unreachable exit condition, leading to denial of service. It affects Wireshark versions 4.6.0 through 4.6.4 and 4.4.0 through 4.4.14. The CVSS 3.1 base score is 5.5, indicating medium severity, with the attack vector being local and requiring user interaction. No integrity or confidentiality impact is noted, only availability is affected. No vendor advisory or patch information is currently available, and no known exploits are reported in the wild.
Potential Impact
Successful exploitation results in denial of service by causing Wireshark to enter an infinite loop when processing GNW protocol data. This impacts availability of the affected application but does not affect confidentiality or integrity.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, avoid processing untrusted GNW protocol traffic in the affected Wireshark versions. Monitor vendor communications for updates.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitLab
- Date Reserved
- 2026-04-17T15:05:27.716Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69f2f4e9cbff5d8610970bc1
Added to database: 4/30/2026, 6:21:29 AM
Last enriched: 4/30/2026, 6:38:08 AM
Last updated: 5/1/2026, 12:50:01 AM
Views: 6
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