Insufficient verification of data authenticity in scapy - #VU148433
Published: September 9, 2026
Vulnerability identifier: #VU148433
CSH Severity: Low
CVSS v4: 5.6 [CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-345
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to obtain a user's new password.
The vulnerability exists due to insufficient verification of data authenticity in the KerberosClient TGS reply handling and kpasswd() helper when replaying a valid Kerberos TGS reply during a password-change request. A remote privileged user can substitute a previously captured reply for the current password-change response to obtain a user's new password.
User interaction is required to initiate the password change.
Affected software
scapy
Remediation
Install security update from vendor's website.
scapy - update to 2.8.0