RockyLinux 9 : glibc (RLSA-2026:33226)

critical Nessus Plugin ID 324109

Language:

Synopsis

The remote RockyLinux host is missing a security update.

Description

The remote RockyLinux 9 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2026:33226 advisory.

* glibc: glibc: Heap Buffer Overflow in `scanf` with `%mc` format specifier and large width (CVE-2026-5450)

Bug Fix(es) and Enhancement(s):

* glibc: counter overflow in __wcsmbs_clone_conv if setlocale is called (JIRA:Rocky Linux-145156)

Tenable has extracted the preceding description block directly from the RockyLinux 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

Update the affected packages.

Plugin Details

Severity: Critical

ID: 324109

File Name: rocky_linux_RLSA-2026-33226.nasl

Version: 1.1

Type: Local

Family: Rocky Linux Local Security Checks

Published: 7/1/2026

Updated: 7/1/2026

Supported Sensors: Nessus Agent, Continuous Assessment, 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: p-cpe:/a:rocky:linux:glibc-langpack-yuw, p-cpe:/a:rocky:linux:glibc-langpack-doi, p-cpe:/a:rocky:linux:glibc-langpack-bn, p-cpe:/a:rocky:linux:glibc-langpack-as, p-cpe:/a:rocky:linux:glibc-langpack-fi, p-cpe:/a:rocky:linux:glibc-langpack-shn, p-cpe:/a:rocky:linux:glibc-langpack-mn, p-cpe:/a:rocky:linux:glibc-langpack-fo, p-cpe:/a:rocky:linux:glibc-langpack-sw, p-cpe:/a:rocky:linux:glibc-langpack-tg, p-cpe:/a:rocky:linux:glibc-langpack-ar, p-cpe:/a:rocky:linux:glibc-langpack-eu, p-cpe:/a:rocky:linux:glibc-langpack-tpi, p-cpe:/a:rocky:linux:glibc-langpack-mg, p-cpe:/a:rocky:linux:glibc-langpack-gl, p-cpe:/a:rocky:linux:glibc-langpack-tk, p-cpe:/a:rocky:linux:glibc-langpack-bi, p-cpe:/a:rocky:linux:glibc-langpack-zh, p-cpe:/a:rocky:linux:glibc-langpack-ber, p-cpe:/a:rocky:linux:glibc-langpack-lzh, p-cpe:/a:rocky:linux:glibc-langpack-wo, p-cpe:/a:rocky:linux:glibc-langpack-ve, p-cpe:/a:rocky:linux:glibc-nss-devel, p-cpe:/a:rocky:linux:glibc-langpack-bs, p-cpe:/a:rocky:linux:glibc-langpack-ha, p-cpe:/a:rocky:linux:glibc-langpack-cv, p-cpe:/a:rocky:linux:glibc-langpack-hsb, p-cpe:/a:rocky:linux:glibc-langpack-gd, p-cpe:/a:rocky:linux:glibc-langpack-tcy, p-cpe:/a:rocky:linux:glibc-langpack-ne, p-cpe:/a:rocky:linux:glibc-langpack-tt, p-cpe:/a:rocky:linux:glibc-langpack-lv, p-cpe:/a:rocky:linux:glibc-langpack-si, p-cpe:/a:rocky:linux:glibc-langpack-en, p-cpe:/a:rocky:linux:glibc-langpack-oc, p-cpe:/a:rocky:linux:glibc-langpack-is, p-cpe:/a:rocky:linux:glibc-langpack-li, p-cpe:/a:rocky:linux:glibc-langpack-ast, p-cpe:/a:rocky:linux:glibc-langpack-pl, p-cpe:/a:rocky:linux:glibc-langpack-uk, p-cpe:/a:rocky:linux:glibc-langpack-fr, p-cpe:/a:rocky:linux:glibc-langpack-ti, p-cpe:/a:rocky:linux:glibc-langpack-csb, p-cpe:/a:rocky:linux:glibc-minimal-langpack, p-cpe:/a:rocky:linux:glibc-headers, p-cpe:/a:rocky:linux:nss_db, p-cpe:/a:rocky:linux:glibc-langpack-ig, p-cpe:/a:rocky:linux:glibc-langpack-gu, p-cpe:/a:rocky:linux:glibc-langpack-the, p-cpe:/a:rocky:linux:glibc-langpack-lo, p-cpe:/a:rocky:linux:glibc-benchtests-debuginfo, p-cpe:/a:rocky:linux:glibc-langpack-id, p-cpe:/a:rocky:linux:glibc-langpack-bem, p-cpe:/a:rocky:linux:glibc-langpack-aa, p-cpe:/a:rocky:linux:glibc-langpack-mi, p-cpe:/a:rocky:linux:glibc-langpack-nso, p-cpe:/a:rocky:linux:glibc-langpack-crh, p-cpe:/a:rocky:linux:glibc-langpack-lb, p-cpe:/a:rocky:linux:glibc-langpack-bo, p-cpe:/a:rocky:linux:glibc-langpack-hi, p-cpe:/a:rocky:linux:glibc-langpack-az, p-cpe:/a:rocky:linux:glibc-langpack-ks, p-cpe:/a:rocky:linux:glibc-langpack-ps, p-cpe:/a:rocky:linux:glibc-langpack-ms, p-cpe:/a:rocky:linux:glibc-common-debuginfo, p-cpe:/a:rocky:linux:glibc-debugsource, p-cpe:/a:rocky:linux:glibc-all-langpacks, p-cpe:/a:rocky:linux:glibc-langpack-rw, p-cpe:/a:rocky:linux:glibc-langpack-sm, p-cpe:/a:rocky:linux:glibc-langpack-lij, p-cpe:/a:rocky:linux:glibc-devel, p-cpe:/a:rocky:linux:glibc-langpack-mnw, p-cpe:/a:rocky:linux:glibc-langpack-yo, p-cpe:/a:rocky:linux:glibc-langpack-chr, p-cpe:/a:rocky:linux:glibc-langpack-gv, p-cpe:/a:rocky:linux:glibc-langpack-dz, p-cpe:/a:rocky:linux:glibc-langpack-tig, p-cpe:/a:rocky:linux:glibc-langpack-da, p-cpe:/a:rocky:linux:glibc-debuginfo, p-cpe:/a:rocky:linux:glibc-langpack-anp, p-cpe:/a:rocky:linux:glibc-langpack-lt, p-cpe:/a:rocky:linux:glibc-langpack-sa, p-cpe:/a:rocky:linux:glibc-langpack-ta, p-cpe:/a:rocky:linux:glibc-langpack-kab, p-cpe:/a:rocky:linux:glibc-langpack-nds, p-cpe:/a:rocky:linux:glibc-langpack-mfe, p-cpe:/a:rocky:linux:glibc-langpack-hy, p-cpe:/a:rocky:linux:glibc-gconv-extra, p-cpe:/a:rocky:linux:glibc-langpack-sv, p-cpe:/a:rocky:linux:glibc-langpack-ky, p-cpe:/a:rocky:linux:glibc-langpack-am, p-cpe:/a:rocky:linux:nscd-debuginfo, p-cpe:/a:rocky:linux:glibc-langpack-sl, p-cpe:/a:rocky:linux:glibc-langpack-tn, p-cpe:/a:rocky:linux:glibc-langpack-kk, p-cpe:/a:rocky:linux:glibc-langpack-ak, p-cpe:/a:rocky:linux:glibc-langpack-el, p-cpe:/a:rocky:linux:glibc-langpack-mni, p-cpe:/a:rocky:linux:glibc-langpack-ff, p-cpe:/a:rocky:linux:glibc-langpack-hr, p-cpe:/a:rocky:linux:glibc-utils-debuginfo, p-cpe:/a:rocky:linux:glibc-langpack-uz, p-cpe:/a:rocky:linux:glibc-langpack-ik, p-cpe:/a:rocky:linux:glibc-langpack-byn, p-cpe:/a:rocky:linux:glibc-langpack-br, p-cpe:/a:rocky:linux:glibc-langpack-sc, p-cpe:/a:rocky:linux:glibc-langpack-sk, p-cpe:/a:rocky:linux:glibc-langpack-ln, p-cpe:/a:rocky:linux:glibc-langpack-agr, p-cpe:/a:rocky:linux:glibc-langpack-sr, p-cpe:/a:rocky:linux:glibc-langpack-unm, p-cpe:/a:rocky:linux:glibc-langpack-af, p-cpe:/a:rocky:linux:glibc-langpack-cs, p-cpe:/a:rocky:linux:glibc-langpack-szl, p-cpe:/a:rocky:linux:glibc-langpack-ja, p-cpe:/a:rocky:linux:glibc-langpack-fil, p-cpe:/a:rocky:linux:glibc-langpack-ht, p-cpe:/a:rocky:linux:glibc-langpack-kok, p-cpe:/a:rocky:linux:glibc-langpack-xh, p-cpe:/a:rocky:linux:glibc-langpack-cy, p-cpe:/a:rocky:linux:nscd, p-cpe:/a:rocky:linux:glibc-langpack-ia, p-cpe:/a:rocky:linux:glibc-gconv-extra-debuginfo, p-cpe:/a:rocky:linux:glibc-langpack-mai, cpe:/o:rocky:linux:9, p-cpe:/a:rocky:linux:glibc-langpack-or, p-cpe:/a:rocky:linux:glibc-langpack-kl, p-cpe:/a:rocky:linux:glibc-langpack-mt, p-cpe:/a:rocky:linux:glibc-doc, p-cpe:/a:rocky:linux:glibc-langpack-es, p-cpe:/a:rocky:linux:glibc-langpack-my, p-cpe:/a:rocky:linux:glibc-langpack-sd, p-cpe:/a:rocky:linux:glibc-langpack-st, p-cpe:/a:rocky:linux:glibc-langpack-wae, p-cpe:/a:rocky:linux:glibc-langpack-nb, p-cpe:/a:rocky:linux:glibc-langpack-bho, p-cpe:/a:rocky:linux:glibc-common, p-cpe:/a:rocky:linux:glibc-langpack-gez, p-cpe:/a:rocky:linux:glibc-langpack-raj, p-cpe:/a:rocky:linux:glibc-langpack-ce, p-cpe:/a:rocky:linux:glibc-langpack-cmn, p-cpe:/a:rocky:linux:glibc-langpack-hif, p-cpe:/a:rocky:linux:nss_hesiod, p-cpe:/a:rocky:linux:glibc-langpack-pa, p-cpe:/a:rocky:linux:glibc-langpack-zu, p-cpe:/a:rocky:linux:glibc-locale-source, p-cpe:/a:rocky:linux:glibc-langpack-ckb, p-cpe:/a:rocky:linux:glibc, p-cpe:/a:rocky:linux:glibc-langpack-et, p-cpe:/a:rocky:linux:glibc-langpack-th, p-cpe:/a:rocky:linux:glibc-langpack-be, p-cpe:/a:rocky:linux:glibc-langpack-yi, p-cpe:/a:rocky:linux:glibc-langpack-bhb, p-cpe:/a:rocky:linux:glibc-langpack-de, p-cpe:/a:rocky:linux:glibc-langpack-ayc, p-cpe:/a:rocky:linux:glibc-langpack-ts, p-cpe:/a:rocky:linux:glibc-langpack-sgs, p-cpe:/a:rocky:linux:glibc-utils, p-cpe:/a:rocky:linux:glibc-langpack-wa, p-cpe:/a:rocky:linux:glibc-langpack-mhr, p-cpe:/a:rocky:linux:glibc-langpack-pap, p-cpe:/a:rocky:linux:glibc-langpack-vi, p-cpe:/a:rocky:linux:glibc-langpack-ru, p-cpe:/a:rocky:linux:glibc-langpack-niu, p-cpe:/a:rocky:linux:libnsl, p-cpe:/a:rocky:linux:glibc-langpack-ss, p-cpe:/a:rocky:linux:glibc-langpack-ml, p-cpe:/a:rocky:linux:glibc-langpack-ka, p-cpe:/a:rocky:linux:glibc-langpack-hu, p-cpe:/a:rocky:linux:glibc-langpack-om, p-cpe:/a:rocky:linux:libnsl-debuginfo, p-cpe:/a:rocky:linux:glibc-langpack-ug, p-cpe:/a:rocky:linux:glibc-langpack-brx, p-cpe:/a:rocky:linux:glibc-langpack-hak, p-cpe:/a:rocky:linux:glibc-langpack-te, p-cpe:/a:rocky:linux:glibc-langpack-iu, p-cpe:/a:rocky:linux:glibc-langpack-to, p-cpe:/a:rocky:linux:nss_db-debuginfo, p-cpe:/a:rocky:linux:glibc-langpack-dv, p-cpe:/a:rocky:linux:nss_hesiod-debuginfo, p-cpe:/a:rocky:linux:glibc-langpack-fy, p-cpe:/a:rocky:linux:glibc-langpack-ur, p-cpe:/a:rocky:linux:glibc-langpack-ga, p-cpe:/a:rocky:linux:glibc-langpack-it, p-cpe:/a:rocky:linux:glibc-static, p-cpe:/a:rocky:linux:glibc-langpack-ko, p-cpe:/a:rocky:linux:glibc-langpack-hne, p-cpe:/a:rocky:linux:glibc-langpack-nr, p-cpe:/a:rocky:linux:glibc-langpack-yue, p-cpe:/a:rocky:linux:glibc-langpack-ku, p-cpe:/a:rocky:linux:glibc-langpack-nn, p-cpe:/a:rocky:linux:glibc-langpack-miq, p-cpe:/a:rocky:linux:glibc-langpack-wal, p-cpe:/a:rocky:linux:glibc-langpack-bg, p-cpe:/a:rocky:linux:glibc-langpack-pt, p-cpe:/a:rocky:linux:glibc-langpack-nhn, p-cpe:/a:rocky:linux:glibc-langpack-nan, p-cpe:/a:rocky:linux:glibc-langpack-mjw, p-cpe:/a:rocky:linux:glibc-langpack-fur, p-cpe:/a:rocky:linux:glibc-langpack-kn, p-cpe:/a:rocky:linux:glibc-langpack-nl, p-cpe:/a:rocky:linux:glibc-langpack-ro, p-cpe:/a:rocky:linux:glibc-langpack-lg, p-cpe:/a:rocky:linux:glibc-langpack-tl, p-cpe:/a:rocky:linux:glibc-langpack-km, p-cpe:/a:rocky:linux:glibc-langpack-sah, p-cpe:/a:rocky:linux:glibc-langpack-sid, p-cpe:/a:rocky:linux:glibc-langpack-kw, p-cpe:/a:rocky:linux:glibc-langpack-mk, p-cpe:/a:rocky:linux:glibc-langpack-quz, p-cpe:/a:rocky:linux:glibc-langpack-se, p-cpe:/a:rocky:linux:glibc-langpack-tr, p-cpe:/a:rocky:linux:glibc-langpack-mr, p-cpe:/a:rocky:linux:glibc-langpack-mag, p-cpe:/a:rocky:linux:glibc-langpack-so, p-cpe:/a:rocky:linux:glibc-benchtests, p-cpe:/a:rocky:linux:glibc-langpack-an, p-cpe:/a:rocky:linux:glibc-langpack-ca, p-cpe:/a:rocky:linux:glibc-langpack-eo, p-cpe:/a:rocky:linux:glibc-langpack-sat, p-cpe:/a:rocky:linux:glibc-langpack-he, p-cpe:/a:rocky:linux:glibc-langpack-sq, p-cpe:/a:rocky:linux:glibc-langpack-dsb, p-cpe:/a:rocky:linux:glibc-langpack-fa, p-cpe:/a:rocky:linux:glibc-langpack-os, p-cpe:/a:rocky:linux:glibc-langpack-shs

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/1/2026

Vulnerability Publication Date: 4/20/2026

Reference Information

CVE: CVE-2026-5450

Detections

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