The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:20593 advisory.

    The kernel packages contain the Linux kernel, the core of any Linux operating system.

    Security Fix(es):

    * kernel: proc: fix UAF in proc_get_inode() (CVE-2025-21999)

    * kernel: Linux kernel (qla2xxx): Double free vulnerability leads to denial of service and potential     privilege escalation. (CVE-2025-71238)

    * kernel: Linux kernel: Denial of service and memory corruption in RDMA umad (CVE-2026-23243)

    * kernel: Linux kernel KVM: Privilege escalation or denial of service due to improper shadow page table     entry handling (CVE-2026-23401)

    * kernel: can: raw: fix ro->uniq use-after-free in raw_rcv() (CVE-2026-31532)

    * kernel: Fragnesia is a variant of Dirty Frag vulnerability in the ESP/XFRM leading to Local Privilege     Escalation (LPE) vulnerability in the Linux kernel (CVE-2026-46300)

    * kernel: Read root-owned files as an unprivileged user (CVE-2026-46333)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Detections

Analytics

RHEL 9 : kernel (RHSA-2026:20593)

high Nessus Plugin ID 316779

Version 1.4

Version 1.2

Version 1.1

Version 1.4 Jun 16, 2026, 8:07 AM Exploit attributes ("Exploit framework core" set to "True") Plugin Feed: 202606160807
Version 1.2 May 29, 2026, 5:27 PM CVSSv2 score source (changed from "CVE-2026-31532" to "CVE-2026-46300") Plugin Feed: 202605291727
Version 1.1 May 27, 2026, 12:56 AM New Plugin Feed: 202605270056