CVE-2026-5655 Details
Description
SDP protocol dissector crash in Wireshark 4.6.0 to 4.6.4 allows denial of service
A denial-of-service vulnerability has been identified in Wireshark versions 4.6.0 through 4.6.4. The issue arises in the SDP protocol dissector, which can crash the application by accessing an invalid memory address. This crash occurs when a SIP INVITE packet and a corresponding 200 OK packet both contain identical 'a=control' values. While Wireshark versions 4.5 and 4.4 can handle such packets without issue, the vulnerable versions fail and crash.
Users are advised to upgrade to Wireshark version 4.6.5 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/21112 | CISA-ADP | ExploitIssue TrackingThird Party Advisory |
| https://gitlab.com/wireshark/wireshark/-/issues/21112 | [email protected] | ExploitIssue TrackingThird Party Advisory |
| https://www.wireshark.org/security/wnpa-sec-2026-19.html | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-416 | Use After Free | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| wireshark wireshark | >= 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] |