Debian 12 — opendmarc — multiple vulnerabilities (6 CVEs) — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Debian 12 (bookworm) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2019-16378 CVE-2019-20790 CVE-2020-12272 CVE-2020-12460 CVE-2021-34555 CVE-2024-25768 Upstream summary: OpenDMARC through 1.3.2 and 1.4.x through 1.4.0-Beta1 is prone to a signature-bypass vulnerability with multiple From: addresses, which might affect […]