Detections
Analytics
Linux Distros Unpatched Vulnerability : CVE-2026-0799
high Nessus Plugin ID 343119
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Synopsis
The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be patched.Description
The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.- In BPF instructions that load/store a value from/to a scratch memory register the register index is an unsigned 32-bit integer and must not exceed 15, but libpcap BPF interpreter does not validate the value.
In particular uncommon use cases a crafted filter program can cause the interpreter to try reading and writing the OS process memory in the 16GiB starting at the current stack frame on 64-bit architectures and in the entire address space on 32-bit architectures. (CVE-2026-0799)
Note that Nessus relies on the presence of the package as reported by the vendor.
Solution
There is no known solution at this time.See Also
https://access.redhat.com/security/cve/cve-2026-0799
Plugin Details
Severity: High
ID: 343119
File Name: unpatched_CVE_2026_0799.nasl
Version: 1.9
Type: Local
Agent: unix
Family: Misc.
Published: 9/5/2026
Updated: 9/25/2026
Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5
Percentile: 93.27
CVSS v2
Risk Factor: Medium
Base Score: 5.4
Temporal Score: 4.6
Vector: CVSS2#AV:L/AC:M/Au:N/C:P/I:N/A:C
CVSS Score Source: CVE-2026-0799
CVSS v3
Risk Factor: High
Base Score: 8.7
Temporal Score: 8
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:H
Temporal Vector: CVSS:3.0/E:U/RL:U/RC:C
Vulnerability Information
CPE: cpe:/o:centos:centos:7, cpe:/o:centos:centos:8, cpe:/o:debian:debian_linux:12.0, cpe:/o:debian:debian_linux:13.0, cpe:/o:redhat:enterprise_linux:10, cpe:/o:redhat:enterprise_linux:6, cpe:/o:redhat:enterprise_linux:7, cpe:/o:redhat:enterprise_linux:8, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:centos:centos:libpcap-devel, p-cpe:/a:centos:centos:libpcap, p-cpe:/a:debian:debian_linux:libpcap, p-cpe:/a:redhat:enterprise_linux:libpcap-devel, p-cpe:/a:redhat:enterprise_linux:libpcap
Required KB Items: Host/local_checks_enabled, Host/cpu, global_settings/vendor_unpatched, Host/OS/identifier
Exploit Ease: No known exploits are available
Vulnerability Publication Date: 9/5/2026
Reference Information
CVE: CVE-2026-0799