Bug 2520084 (CVE-2026-76888)

Summary: CVE-2026-76888 wireshark: Wireshark: Heap-based Buffer Overflow in RDP dissector leads to Denial of Service
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: kshier, rhel-process-autobot, stcannon, teagle, watson-tool-maintainers, yguenane
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: ---
Doc Text:
A flaw was found in Wireshark. A remote attacker could exploit a heap-based buffer overflow vulnerability within the RDP (Remote Desktop Protocol) dissector. By crafting a malicious RDP packet, an attacker could cause the Wireshark application to crash, leading to a denial of service.
Story Points: ---
Clone Of: Environment:
Last Closed: Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 2520981    
Bug Blocks:    

Description OSIDB Bzimport 2026-08-19 22:51:58 UTC
RDP protocol dissector crash in 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 allows denial of service