Wireshark 4.6.x/4.4.x BLF Parser Info Disclosure (CVE-2026-15168)
CVE-2026-15168 Published on July 8, 2026
Use of Uninitialized Variable in Wireshark
BLF file parser in Wireshark 4.6.0 to 4.6.6 and 4.4.0 to 4.4.16 allows possible information disclosure
Vulnerability Analysis
CVE-2026-15168 is exploitable with local system access, requires user interaction. This vulnerability is consided to have a high level of attack complexity. Public availability of a proof of concept (POC) exploit exists for CVE-2026-15168. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality, a small impact on integrity and availability.
Weakness Type
Use of Uninitialized Variable
The code uses a variable that has not been initialized, leading to unpredictable or unintended results. In some languages such as C and C++, stack variables are not initialized by default. They generally contain junk data with the contents of stack memory before the function was invoked. An attacker can sometimes control or read these contents. In other languages or conditions, a variable that is not explicitly initialized can be given a default value that has security implications, depending on the logic of the program. The presence of an uninitialized variable can sometimes indicate a typographic error in the code.
Products Associated with CVE-2026-15168
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Affected Versions
Wireshark Foundation Wireshark:- Version 4.6.0 and below 4.6.7 is affected.
- Version 4.4.0 and below 4.4.17 is affected.