EIP-2026-103748

PRE-CVE

Wireshark - wtap_optionblock_free Use-After-Free

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-103748. PoCs published by Google Security Research.

AI-analyzed exploit summary This exploit demonstrates a use-after-free vulnerability in Wireshark's pcapng file parsing, leading to a crash via a malformed file. The PoC includes an ASAN trace and a link to trigger files.

Description

Wireshark - wtap_optionblock_free Use-After-Free

Exploits (1)

exploitdb WORKING POC VERIFIED
by Google Security Research · textdosmultiple
https://www.exploit-db.com/exploits/39529

This exploit demonstrates a use-after-free vulnerability in Wireshark's pcapng file parsing, leading to a crash via a malformed file. The PoC includes an ASAN trace and a link to trigger files.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: Wireshark (git master at time of disclosure)
No auth needed
Prerequisites: A malformed pcapng file · Wireshark/tshark with ASAN build
devstral-2 · analyzed Feb 16, 2026 Full analysis →

Details

Status pre_cve
Tracked Since Feb 18, 2026