SUSE SLES12 Security Update : glibc (SUSE-SU-2026:2440-1)

critical Nessus Plugin ID 321751

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Synopsis

The remote SUSE host is missing one or more security updates.

Description

The remote SUSE Linux SLES12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:2440-1 advisory.

- CVE-2026-5928: libio: Fix ungetwc operating on byte stream (bsc#1262464, BZ #33998)
- CVE-2026-5450: stdio-common: Fix buffer overflow in scanf %mc (bsc#1262465, BZ #34008)
- CVE-2026-4046: Use pending character state in IBM1390, IBM1399 character sets (bsc#1261206, BZ #33980)

Tenable has extracted the preceding description block directly from the SUSE 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 affected packages.

Plugin Details

Severity: Critical

ID: 321751

File Name: suse_SU-2026-2440-1.nasl

Version: 1.1

Type: Local

Agent: unix

Family: SuSE Local Security Checks

Published: 6/20/2026

Updated: 6/20/2026

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 57.97

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.8

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

CVSS Score Source: CVE-2026-5450

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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

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

Vulnerability Information

CPE: cpe:/o:novell:suse_linux:12, p-cpe:/a:novell:suse_linux:glibc, p-cpe:/a:novell:suse_linux:glibc-devel, p-cpe:/a:novell:suse_linux:glibc-html, p-cpe:/a:novell:suse_linux:glibc-i18ndata, p-cpe:/a:novell:suse_linux:glibc-info, p-cpe:/a:novell:suse_linux:glibc-locale, p-cpe:/a:novell:suse_linux:glibc-profile, p-cpe:/a:novell:suse_linux:nscd, p-cpe:/a:novell:suse_linux:glibc-devel-static, p-cpe:/a:novell:suse_linux:glibc-32bit, p-cpe:/a:novell:suse_linux:glibc-devel-32bit, p-cpe:/a:novell:suse_linux:glibc-locale-32bit, p-cpe:/a:novell:suse_linux:glibc-profile-32bit

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 6/18/2026

Vulnerability Publication Date: 3/30/2026

Reference Information

CVE: CVE-2026-4046, CVE-2026-5450, CVE-2026-5928

SuSE: SUSE-SU-2026:2440-1

Detections

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