Detections
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Amazon Linux 2 : vim, --advisory ALAS2-2026-3251 (ALAS-2026-3251)

high Nessus Plugin ID 311207

Synopsis

The remote Amazon Linux 2 host is missing a security update.

Description

It is, therefore, affected by a vulnerability as referenced in the ALAS2-2026-3251 advisory.

 A modeline sandbox bypass in Vim allows arbitrary OS command execution when a user opens a crafted file.
 The complete, guitabtooltip and printheader options are missing the P_MLE flag, allowing a modeline to be executed. Additionally, the mapset() function lacks a check_secure() call, allowing it to be abused from sandboxed expressions.

 An attacker who can deliver a crafted file to a victim achieves arbitrary command execution with the privileges of the user running Vim. (CVE-2026-34982)

Tenable has extracted the preceding description block directly from the tested product 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

Run 'yum update vim' or or 'yum update --advisory ALAS2-2026-3251' to update your system.

See Also

https://alas.aws.amazon.com//AL2/ALAS2-2026-3251.html

https://alas.aws.amazon.com/faqs.html

https://explore.alas.aws.amazon.com/CVE-2026-34982.html

Plugin Details

Severity: High

ID: 311207

File Name: al2_ALAS-2026-3251.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 4/30/2026

Updated: 4/30/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.1

CVSS v2

Risk Factor: Medium

Base Score: 6.6

Temporal Score: 4.9

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:N

CVSS Score Source: CVE-2026-34982

CVSS v3

Risk Factor: High

Base Score: 8.2

Temporal Score: 7.1

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:vim-common, p-cpe:/a:amazon:linux:xxd, cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:vim-enhanced, p-cpe:/a:amazon:linux:vim-data, p-cpe:/a:amazon:linux:vim-debuginfo, p-cpe:/a:amazon:linux:vim-x11, p-cpe:/a:amazon:linux:vim-filesystem, p-cpe:/a:amazon:linux:vim-minimal

Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 4/30/2026

Vulnerability Publication Date: 4/2/2026

Reference Information

CVE: CVE-2026-34982