CVE-2016-20047
HIGH
NVD
CVSS Score
8.4
Severity
HIGH
Published
Mar 28, 2026
Vendor
unknown
Description
EKG Gadu 1.9~pre+r2855-3+b1 contains a local buffer overflow vulnerability in the username handling that allows local attackers to execute arbitrary code by supplying an oversized username string. Attackers can trigger the overflow in the strlcpy function by passing a crafted buffer exceeding 258 bytes to overwrite the instruction pointer and execute shellcode with user privileges.