CVE-2016-20047 — EKG Gadu 1.9 Local Buffer Overflow via Username Parameter
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 oversiz…
Published: 2026-03-28 · CVSS: 8.6 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7