# CVE-2026-93683: dpdk: A flaw was found in the DPDK vhost library CVE-2026-93683 is fixed in 4 products on 1 platform, first by DEBIAN-CVE-2026-93683, released October 21, 2026. It is not reported as exploited. Patch Radar priority: High. - Web page: https://patchblox.com/security/cve/CVE-2026-93683 - Priority: High - CVSS: 8.8 (medium) - EPSS: 0.0011 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Oct 14, 2026 ## Description A flaw was found in the DPDK vhost library. When handling a virtio indirect descriptor table, the host reads the table length more than once from guest memory and can allocate a host copy before validating that length. A guest that changes the length between those reads, or that supplies an out-of-range next index on a small host copy in the vDPA relay path, can cause the host vhost process to walk past the validated mapping or heap copy. That can crash or disrupt the vhost process. Out-of-bounds bytes are consumed as descriptor fields for GPA translation and are not returned to the guest as payload. This is a residual issue in the non-contiguous indirect descriptor copy path introduced as part of the CVE-2018-1059 fix. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | dpdk Debian 13.5 (trixie) | 24.11.8-0+deb13u1 | [DEBIAN-CVE-2026-93683](https://patchblox.com/security/data/fix/linux/debian-cve-2026-93683.md) | Oct 21, 2026 | | Linux | dpdk Debian 14 | 25.11.4-1 | [DEBIAN-CVE-2026-93683](https://patchblox.com/security/data/fix/linux/debian-cve-2026-93683.md) | Oct 21, 2026 | | Linux | dpdk RHEL 10 | 25.11-2.el10_2 | [RHSA-2026:94630](https://patchblox.com/security/data/fix/linux/rhsa-2026-94630.md) | Nov 4, 2026 | | Linux | dpdk RHEL 9 | 2:25.11-2.el9_8 | [RHSA-2026:94629](https://patchblox.com/security/data/fix/linux/rhsa-2026-94629.md) | Nov 4, 2026 | | Linux | dpdk almalinux 10 | 2:25.11-2.el10_2 | [ALSA-2026:94630](https://patchblox.com/security/data/fix/linux/alsa-2026-94630.md) | Nov 7, 2026 | | Linux | dpdk almalinux 9 | 2:25.11-2.el9_8 | [ALSA-2026:94629](https://patchblox.com/security/data/fix/linux/alsa-2026-94629.md) | Nov 7, 2026 | | Linux | dpdk ol 10 | 2:25.11-2.el10_2 | [ELSA-2026-94630](https://patchblox.com/security/data/fix/linux/elsa-2026-94630.md) | Nov 7, 2026 | | Linux | dpdk ol 9 | 2:25.11-2.el9_8 | [ELSA-2026-94629](https://patchblox.com/security/data/fix/linux/elsa-2026-94629.md) | Nov 7, 2026 | | Linux | dpdk rocky 10 | 2:25.11-2.el10_2 | [RLSA-2026:94630](https://patchblox.com/security/data/fix/linux/rlsa-2026-94630.md) | Nov 7, 2026 | | Linux | dpdk rocky 9 | 2:25.11-2.el9_8 | [RLSA-2026:94629](https://patchblox.com/security/data/fix/linux/rlsa-2026-94629.md) | Nov 7, 2026 | | Linux | dpdk-devel RHEL 9 | 2:25.11-2.el9_8 | [RHSA-2026:94629](https://patchblox.com/security/data/fix/linux/rhsa-2026-94629.md) | Nov 4, 2026 | | Linux | dpdk-devel almalinux 10 | 2:25.11-2.el10_2 | [ALSA-2026:94630](https://patchblox.com/security/data/fix/linux/alsa-2026-94630.md) | Nov 7, 2026 | | Linux | dpdk-devel almalinux 9 | 2:25.11-2.el9_8 | [ALSA-2026:94629](https://patchblox.com/security/data/fix/linux/alsa-2026-94629.md) | Nov 7, 2026 | | Linux | dpdk-devel ol 10 | 2:25.11-2.el10_2 | [ELSA-2026-94630](https://patchblox.com/security/data/fix/linux/elsa-2026-94630.md) | Nov 7, 2026 | | Linux | dpdk-devel ol 9 | 2:25.11-2.el9_8 | [ELSA-2026-94629](https://patchblox.com/security/data/fix/linux/elsa-2026-94629.md) | Nov 7, 2026 | | Linux | dpdk-doc RHEL 9 | 2:25.11-2.el9_8 | [RHSA-2026:94629](https://patchblox.com/security/data/fix/linux/rhsa-2026-94629.md) | Nov 4, 2026 | | Linux | dpdk-doc almalinux 10 | 2:25.11-2.el10_2 | [ALSA-2026:94630](https://patchblox.com/security/data/fix/linux/alsa-2026-94630.md) | Nov 7, 2026 | | Linux | dpdk-doc almalinux 9 | 2:25.11-2.el9_8 | [ALSA-2026:94629](https://patchblox.com/security/data/fix/linux/alsa-2026-94629.md) | Nov 7, 2026 | | Linux | dpdk-doc ol 10 | 2:25.11-2.el10_2 | [ELSA-2026-94630](https://patchblox.com/security/data/fix/linux/elsa-2026-94630.md) | Nov 7, 2026 | | Linux | dpdk-doc ol 9 | 2:25.11-2.el9_8 | [ELSA-2026-94629](https://patchblox.com/security/data/fix/linux/elsa-2026-94629.md) | Nov 7, 2026 | | Linux | dpdk-tools RHEL 9 | 2:25.11-2.el9_8 | [RHSA-2026:94629](https://patchblox.com/security/data/fix/linux/rhsa-2026-94629.md) | Nov 4, 2026 | | Linux | dpdk-tools almalinux 10 | 2:25.11-2.el10_2 | [ALSA-2026:94630](https://patchblox.com/security/data/fix/linux/alsa-2026-94630.md) | Nov 7, 2026 | | Linux | dpdk-tools almalinux 9 | 2:25.11-2.el9_8 | [ALSA-2026:94629](https://patchblox.com/security/data/fix/linux/alsa-2026-94629.md) | Nov 7, 2026 | | Linux | dpdk-tools ol 10 | 2:25.11-2.el10_2 | [ELSA-2026-94630](https://patchblox.com/security/data/fix/linux/elsa-2026-94630.md) | Nov 7, 2026 | | Linux | dpdk-tools ol 9 | 2:25.11-2.el9_8 | [ELSA-2026-94629](https://patchblox.com/security/data/fix/linux/elsa-2026-94629.md) | Nov 7, 2026 | --- Data as of 2026-11-09T01:18:40Z UTC. 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