CVE-2026-6537: CWE-121: Stack-based Buffer Overflow in Wireshark Foundation Wireshark
ZigBee 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-2026-6537) involves a stack-based buffer overflow in the ZigBee protocol dissector component of Wireshark versions 4.4.0 through 4.4.14 and 4.6.0 through 4.6.4. Exploitation causes the application to crash, leading to denial of service. The CVSS 3.1 base score is 5.5 (medium), reflecting local attack vector, low attack complexity, no privileges required, user interaction needed, unchanged scope, and impact limited to availability. No patch or vendor advisory detailing remediation is currently available.
Potential Impact
Successful exploitation results in denial of service by crashing Wireshark. There is no impact on confidentiality or integrity. The attack requires local access and user interaction, limiting the attack surface. No known exploits are 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 exercise caution when analyzing ZigBee protocol traffic and avoid opening untrusted capture files that may trigger the vulnerability.
CVE-2026-6537: CWE-121: Stack-based Buffer Overflow in Wireshark Foundation Wireshark
Description
ZigBee 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-2026-6537) involves a stack-based buffer overflow in the ZigBee protocol dissector component of Wireshark versions 4.4.0 through 4.4.14 and 4.6.0 through 4.6.4. Exploitation causes the application to crash, leading to denial of service. The CVSS 3.1 base score is 5.5 (medium), reflecting local attack vector, low attack complexity, no privileges required, user interaction needed, unchanged scope, and impact limited to availability. No patch or vendor advisory detailing remediation is currently available.
Potential Impact
Successful exploitation results in denial of service by crashing Wireshark. There is no impact on confidentiality or integrity. The attack requires local access and user interaction, limiting the attack surface. No known exploits are 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 exercise caution when analyzing ZigBee protocol traffic and avoid opening untrusted capture files that may trigger the vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitLab
- Date Reserved
- 2026-04-17T15:06:37.698Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69f2f4ebcbff5d8610970c77
Added to database: 4/30/2026, 6:21:31 AM
Last enriched: 4/30/2026, 6:36:44 AM
Last updated: 4/30/2026, 9:51:29 AM
Views: 8
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.