CVE-2026-6537 Details
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
A stack-based buffer overflow vulnerability has been identified in the ZigBee Direct protocol dissector of Wireshark. This issue is present in Wireshark versions 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14. The vulnerability allows for a denial-of-service condition, where the application crashes due to the improper handling of packet data. The 'decrypt_data' function in the ZigBee dissector allocates a fixed-size buffer on the stack but fails to validate the length of the input before performing decryption. This oversight enables an attacker to manipulate the length parameter, causing a buffer overflow that corrupts the stack and leads to a crash.
Users are advised to upgrade to Wireshark versions 4.6.5, 4.4.15 or later.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Apr 30, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://gitlab.com/wireshark/wireshark/-/work_items/21125 | CISA-ADP | ExploitIssue TrackingThird Party Advisory |
| https://gitlab.com/wireshark/wireshark/-/issues/21125 | [email protected] | ExploitIssue Tracking |
| https://www.wireshark.org/security/wnpa-sec-2026-24.html | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-121 | Stack-based Buffer Overflow | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| wireshark wireshark | >= 4.4.0, <= 4.4.14 >= 4.6.0, <= 4.6.4 |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 1, 2026 | Initial Analysis | [email protected] |
| Apr 30, 2026 | CVE Modified | CISA-ADP |
| Apr 30, 2026 | New CVE Received | [email protected] |