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Packages - edk2 - UEFI firmware for virtual machines Details It was discovered that EDK II incorrectly handled CMS key unwrapping in the embedded OpenSSL library. An attacker could possibly use this issue to cause a heap buffer overflow, resulting in a denial of service. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 26.04 LTS. (CVE-2026-63072) It was discovered that EDK II incorrectly handled CMP protection verification in the embedded OpenSSL library. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 24.04 LTS and Ubuntu 26.04 LTS. (CVE-2026-63076) It was discovered that EDK II incorrectly buffered DTLS records in the embedded OpenSSL library. A remote attacker could possibly use this issue to cause EDK II to consume excessive memory, resulting in a denial of service. ( It was discovered that EDK II incorrectly handled CMS key unwrapping in the embedded OpenSSL library. An attacker could possibly use this issue to cause a heap buffer overflow, resulting in a denial of service. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 26.04 LTS. (CVE-2026-63072) It was discovered that EDK II incorrectly handled CMP protection verification in the embedded OpenSSL library. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 24.04 LTS and Ubuntu 26.04 LTS. (CVE-2026-63076) It was discovered that EDK II incorrectly buffered DTLS records in the embedded OpenSSL library. A remote attacker could possibly use this issue to cause EDK II to consume excessive memory, resulting in a denial of service. (CVE-2026-54874) It was discovered that EDK II incorrectly verified AEAD tags in the embedded OpenSSL library. An attacker could possibly use this issue to cause EDK II to accept forged messages. This issue only affected Ubuntu 24.04 LTS and Ubuntu 26.04 LTS. (CVE-2026-75803) Update instructions In general, a standard system update will make all the necessary changes. Learn more about how to get the fixes.The problem can be corrected by updating your system to the following package versions: | Ubuntu Release | Package Version | || |---|---|---|---| | 26.04 LTS resolute | ovmf – 2025.11-3ubuntu7.3 | || | qemu-efi-aarch64 – 2025.11-3ubuntu7.3 | ||| | 24.04 LTS noble | ovmf – 2024.02-2ubuntu0.10 | || | qemu-efi-aarch64 – 2024.02-2ubuntu0.10 | ||| | 22.04 LTS jammy | ovmf – 2022.02-3ubuntu0.22.04.7 | || | qemu-efi – 2022.02-3ubuntu0.22.04.7 | ||| | 20.04 LTS focal | ovmf – 0~20191122.bd85bf54-2ubuntu3.6+esm1 | || | qemu-efi – 0~20191122.bd85bf54-2ubuntu3.6+esm1 | ||| | 18.04 LTS bionic | ovmf – 0~20180205.c0d9813c-2ubuntu0.3+esm3 | || | qemu-efi – 0~20180205.c0d9813c-2ubuntu0.3+esm3 | ||| | 16.04 LTS xenial | ovmf – 0~20160408.ffea0a2c-2ubuntu0.2+esm4 | || | qemu-efi – 0~20160408.ffea0a2c-2ubuntu0.2+esm4 | Reduce your security exposure Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.