Out-of-bounds write in Tcpreplay - #VU139268
Published: July 24, 2026 / Updated: July 24, 2026
Vulnerability identifier: #VU139268
CSH Severity: Low
CVSS v4: 6.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-787
Exploitation vector: Local access
Exploit availability:
Public exploit is available
Vulnerability details
The vulnerability allows a local user to compromise vulnerable system.
The vulnerability exists due to a boundary error when processing untrusted input in src/common/sendpacket.c within KHIAL interface. A local user can trigger an out-of-bounds write and gain access to senitive informatio on perform a denial of service (DoS) attack.
Affected software
Tcpreplay
Remediation
Install updates from vendor's website.
Tcpreplay - addressed in versions 4.5.4, 4.6.0 beta2