Detections
Analytics
RHEL 8 : vim (RHSA-2026:66348)
high Nessus Plugin ID 344637
Synopsis
The remote Red Hat host is missing one or more security updates for vim.Description
The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:66348 advisory.Vim (Vi IMproved) is an updated and improved version of the vi editor.
Security Fix(es):
* vim: Vim: Information disclosure and denial of service via crafted Unicode characters in terminal emulator (CVE-2026-28420)
* vim: Vim: Denial of Service via out-of-bounds write in terminal handling (CVE-2026-52859)
* vim: Vim: Denial of Service via crafted spell file (CVE-2026-55892)
* vim: Vim: Denial of Service via out-of-bounds write in spell sound-folding (CVE-2026-59857)
* vim: Vim: Arbitrary command execution via crafted vimball (CVE-2026-73076)
* vim: Vim: Heap buffer overflow allows arbitrary code execution (CVE-2026-73072)
* vim: Vim: Arbitrary Code Execution via Crafted Netrw Menu Entries (CVE-2026-73078)
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.
Solution
Update the RHEL vim package based on the guidance in RHSA-2026:66348.See Also
https://access.redhat.com/errata/RHSA-2026:66348
https://access.redhat.com/security/updates/classification/#important
https://bugzilla.redhat.com/show_bug.cgi?id=2443484
https://bugzilla.redhat.com/show_bug.cgi?id=2487989
https://bugzilla.redhat.com/show_bug.cgi?id=2492975
https://bugzilla.redhat.com/show_bug.cgi?id=2498863
https://bugzilla.redhat.com/show_bug.cgi?id=2514034
https://bugzilla.redhat.com/show_bug.cgi?id=2514037
Plugin Details
Severity: High
ID: 344637
File Name: redhat-RHSA-2026-66348.nasl
Version: 1.1
Type: Local
Agent: unix
Family: Red Hat Local Security Checks
Published: 9/10/2026
Updated: 9/10/2026
Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus
Risk Information
VPR
Risk Factor: High
Score: 7.6
Percentile: 98.37
Vendor
Vendor Severity: Important
CVSS v2
Risk Factor: High
Base Score: 8.5
Temporal Score: 6.7
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:C
CVSS Score Source: CVE-2026-52859
CVSS v3
Risk Factor: High
Base Score: 8.2
Temporal Score: 7.4
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
CVSS v4
Risk Factor: High
Base Score: 8.6
Threat Score: 7.3
Threat Vector: CVSS:4.0/E:P
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS Score Source: CVE-2026-73078
Vulnerability Information
CPE: cpe:/o:redhat:enterprise_linux:8, cpe:/o:redhat:rhel_eus:8.10, p-cpe:/a:redhat:enterprise_linux:vim-common, p-cpe:/a:redhat:enterprise_linux:vim-enhanced, p-cpe:/a:redhat:enterprise_linux:vim-x11, p-cpe:/a:redhat:enterprise_linux:vim
Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 9/10/2026
Vulnerability Publication Date: 2/27/2026
Reference Information
CVE: CVE-2026-28420, CVE-2026-52859, CVE-2026-55892, CVE-2026-59857, CVE-2026-73072, CVE-2026-73076, CVE-2026-73078
RHSA: 2026:66348