Detections
Analytics
Oracle Linux 8 / 9 : Unbreakable Enterprise kernel (ELSA-2026-50387)
high Nessus Plugin ID 326352
Synopsis
The remote Oracle Linux host is missing a security update.Description
The remote Oracle Linux 8 / 9 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2026-50387 advisory.- rtmutex: Use waiter::task instead of current in remove_waiter() (Keenan Dong) [Orabug: 39706512] {CVE-2026-43499}
- net/sched: fix pedit partial COW leading to page cache corruption (Rajat Gupta) [Orabug: 39668793] {CVE-2026-46331}
- net: skbuff: fix missing zerocopy reference in pskb_carve helpers (Minh Nguyen) [Orabug: 39648952] {CVE-2026-52943}
- arm64: errata: Mitigate TLBI errata on various Arm CPUs (Mark Rutland) [Orabug: 39548689] {CVE-2025-10263}
- net: tap: NULL pointer derefence in dev_parse_header_protocol when skb->dev is null (Cezar Bulinaru) [Orabug: 39526881] {CVE-2022-50073}
- batman-adv: hold claim backbone gateways by reference (Haoze Xie) [Orabug: 39262374] {CVE-2026-31657}
- net: skbuff: propagate shared-frag marker through frag-transfer helpers (Hyunwoo Kim) [Orabug:
39368827] {CVE-2026-46300}
- ptrace: slightly saner 'get_dumpable()' logic (Linus Torvalds) [Orabug: 39384274] {CVE-2026-46333}
- Revert 'mm/hugetlb: add option to allows disabling CVE-2025-38085 mitigation' (Samasth Norway Ananda) [Orabug: 38474901]
- x86/CPU/AMD: Add a fix for AMD-SB-7052 (Prathyushi Nangia) [Orabug: 39327141] {CVE-2025-54518}
- xfrm: esp: ipv4: fix up flags setting (Greg Kroah-Hartman) [Orabug: 39342679] {CVE-2026-43284}
- xfrm: esp: avoid in-place decrypt on shared skb frags (Kuan-Ting Chen) [Orabug: 39342679] {CVE-2026-43284}
- nfsd: fix heap overflow in NFSv4.0 LOCK replay cache (Jeff Layton) [Orabug: 39167616] {CVE-2026-31402}
- net/sched: Only allow act_ct to bind to clsact/ingress qdiscs and shared blocks (Victor Nogueira) [Orabug: 39103230] {CVE-2026-23270}
Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.
Solution
Update the affected packages.See Also
Plugin Details
Severity: High
ID: 326352
File Name: oraclelinux_ELSA-2026-50387.nasl
Version: 1.1
Type: Local
Agent: unix
Published: 7/10/2026
Updated: 7/10/2026
Supported Sensors: Nessus Agent, Continuous Assessment, Nessus
Risk Information
VPR
Risk Factor: High
Score: 7.9
Percentile: 99.36
CVSS v2
Risk Factor: Medium
Base Score: 6.8
Temporal Score: 5.3
Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C
CVSS Score Source: CVE-2026-43499
CVSS v3
Risk Factor: High
Base Score: 7.8
Temporal Score: 7
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:oracle:linux:kernel-uek64k-core, p-cpe:/a:oracle:linux:kernel-uek-doc, cpe:/o:oracle:linux:9, p-cpe:/a:oracle:linux:kernel-uek-debug-core, p-cpe:/a:oracle:linux:kernel-uek-modules, p-cpe:/a:oracle:linux:kernel-uek-debug, cpe:/o:oracle:linux:8, cpe:/o:oracle:linux:9:8:baseos_patch, p-cpe:/a:oracle:linux:kernel-uek-debug-modules, p-cpe:/a:oracle:linux:kernel-uek-debug-modules-extra, p-cpe:/a:oracle:linux:kernel-uek-container, p-cpe:/a:oracle:linux:kernel-uek-devel, p-cpe:/a:oracle:linux:kernel-uek, p-cpe:/a:oracle:linux:kernel-uek64k-modules, p-cpe:/a:oracle:linux:bpftool, p-cpe:/a:oracle:linux:kernel-uek-core, p-cpe:/a:oracle:linux:kernel-uek64k, p-cpe:/a:oracle:linux:kernel-uek64k-modules-extra, p-cpe:/a:oracle:linux:kernel-uek-modules-extra, p-cpe:/a:oracle:linux:kernel-uek-debug-devel, p-cpe:/a:oracle:linux:kernel-uek64k-devel, p-cpe:/a:oracle:linux:kernel-uek-container-debug
Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/OracleLinux
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 7/10/2026
Vulnerability Publication Date: 5/21/2026
Reference Information
CVE: CVE-2026-43499