Out-of-bounds read in Tcpreplay - #VU139265
Published: July 24, 2026 / Updated: July 24, 2026
Vulnerability identifier: #VU139265
CSH Severity: High
CVSS v4: 8.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerability details
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition in the get_layer4_v6 function. A remote attacker can trigger an out-of-bounds read error and read contents of memory on the system or perform a denialo f service (DoS) attack..
Affected software
Tcpreplay
Remediation
Install updates from vendor's website.
Tcpreplay - addressed in versions 4.5.5, 4.6.0 beta2