Debian 11 — vtun — multiple vulnerabilities (3 CVEs) — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Debian 11 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2002-1697 CVE-2002-1746 CVE-2002-1747 Upstream summary: Electronic Code Book (ECB) mode in VTun 2.0 through 2.5 uses a weak encryption algorithm that produces the same ciphertext from the same plaintext […]