Detections
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Fedora 44 : glibc (2026-ced72ab158)

critical Nessus Plugin ID 311773

Synopsis

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

Description

The remote Fedora 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-ced72ab158 advisory.

 This update provides various security fixes.

 * Buffer overflow in `scanf` `%mc` (CVE-2026-5450)
 * `ns_sprintrrf` buffer overreads (CVE-2026-6238)
 * `ns_sprintrrf` buffer overflow in TSIG record processing (CVE-2026-5435)
 * Memory corruption in `ungetwc` (CVE-2026-5928)
 * Assertion failure in `iconv` with IBM1390, IBM1399 charsets (CVE-2026-4046)


Tenable has extracted the preceding description block directly from the Fedora 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 glibc package.

See Also

https://bodhi.fedoraproject.org/updates/FEDORA-2026-ced72ab158

Plugin Details

Severity: Critical

ID: 311773

File Name: fedora_2026-ced72ab158.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 5/2/2026

Updated: 5/2/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

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: p-cpe:/a:fedoraproject:fedora:glibc, cpe:/o:fedoraproject:fedora:44

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 4/30/2026

Vulnerability Publication Date: 3/30/2026

Reference Information

CVE: CVE-2026-4046, CVE-2026-5435, CVE-2026-5450, CVE-2026-5928, CVE-2026-6238