Denial of Service Vulnerability in Catapult DCT2000 File Parser Affecting Wireshark
CVE-2026-76883

4.7MEDIUM

Key Information:

Vendor

Wireshark
Status
Wireshark
Vendor
CVE Published:
19 August 2026

What is CVE-2026-76883?

The Catapult DCT2000 file parser in Wireshark versions 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 contains a vulnerability that may lead to a denial of service condition. This issue arises during the processing of specially crafted files, potentially crashing the application and interrupting service continuity. Users are encouraged to update their versions to mitigate potential impacts and ensure stable operations.

Affected Version(s)

Wireshark 4.6.0 < 4.6.8

Wireshark 4.4.0 < 4.4.18

References

https://www.wireshark.org/security/wnpa-sec-2026-74.html
https://gitlab.com/wireshark/wireshark/-/work_items/21427

CVSS V3.1

Score:
4.7
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
High
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Yazan Balawneh - CyStack Security Team
.