PT-2026-28230 · Undefined · Undefined

Published 2026-03-28 · Updated 2026-03-28 · CVE-2016-20047

NVD

CVSS v3.1

8.4

High

Base vector

AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2016-20047

Affected Products

Undefined

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2016-20047 · Security Note
• https://vulncheck.com/advisories/ekg-gadu-local-buffer-overflow-via-username-parameter · Note
• https://exploit-db.com/exploits/40392 · Note
• http://ekg.chmurka.net · Note