CVE-2026-76887 PUBLISHED

Heap-based Buffer Overflow in Wireshark

Assigner: GitLab
Reserved: 19.08.2026 Published: 19.08.2026 Updated: 19.08.2026

Crash in the Wireshark dissection engine in 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 allows denial of service

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L
CVSS Score: 3.1

Product Status

Vendor Wireshark Foundation
Product Wireshark
Versions Default: unaffected
  • affected from 4.6.0 to 4.6.8 (excl.)
  • affected from 4.4.0 to 4.4.18 (excl.)

Solutions

Upgrade to version 4.6.8 or above

Credits

  • Daniel Birtwhistle finder

References

Problem Types

  • CWE-122: Heap-based Buffer Overflow CWE