glibc: glibc: Heap Buffer Overflow in `scanf` with `%mc` format specifier and large width

A flaw was found in glibc GNU C Library. This vulnerability occurs when an application uses the scanf family of functions with a %mc format specifier, which is used for dynamically allocating memory for character input, and provides an explicit width greater than 1024. This specific combination c...

Moderate: Red Hat Security Advisory: glibc security update

An update for glibc is now available for Red Hat Enterprise Linux 10.0 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for...

glibc: glibc: Heap Buffer Overflow in `scanf` with `%mc` format specifier and large width

A flaw was found in glibc GNU C Library. This vulnerability occurs when an application uses the scanf family of functions with a %mc format specifier, which is used for dynamically allocating memory for character input, and provides an explicit width greater than 1024. This specific combination c...

Moderate: Red Hat Security Advisory: glibc security update

An update for glibc is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the...

Moderate: glibc security, bug fix, and enhancement update

The glibc packages provide the standard C libraries libc, POSIX thread libraries libpthread, standard math libraries libm, and the name service cache daemon nscd used by multiple programs on the system. Without these libraries, the Linux system cannot function correctly. Security Fixes: glibc:...

OPENSUSE-SU-2026:11140-1 glibc-2.43-4.1 on GA media

These are all security issues fixed in the glibc-2.43-4.1 package on the GA media of openSUSE Tumbleweed...

EulerOS 2.0 SP15 : glibc (EulerOS-SA-2026-2442)

According to the versions of the glibc packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : Calling the ungetwc function on a FILE stream with wide characters encoded in a character set that has overlaps between its single byte and...

EulerOS 2.0 SP15 : glibc (EulerOS-SA-2026-2483)

According to the versions of the glibc packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : Calling the ungetwc function on a FILE stream with wide characters encoded in a character set that has overlaps between its single byte and...

Oracle Linux 9 : glibc (ELSA-2026-20597)

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-20597 advisory. 2.34-270.0.1 - Forward-port Oracle patches for ol9-u8 Reviewed-by: Jose E. Marchesi Oracle history: May-20-2026 Cupertino Miranda - 2.34-266.0.1 -...

Astra Linux – Vulnerability in glibc

Passing an excessively large alignment parameter to the memalign functions memalign, posixmemalign, alignedalloc in the GNU C Library versions 2.30 to 2.42 may lead to an integer overflow, which could subsequently cause heap corruption. It should be noted that the attacker must have control over...

SUSE-SU-2026:2465-1 Security update for glibc

This update for glibc fixes the following issues: - CVE-2026-4046: Use pending character state in IBM1390, IBM1399 character sets bsc1261206, BZ 33980...

SUSE-SU-2026:2440-1 Security update for glibc

This update for glibc fixes the following issues: - CVE-2026-5928: libio: Fix ungetwc operating on byte stream bsc1262464, BZ 33998 - CVE-2026-5450: stdio-common: Fix buffer overflow in scanf %mc bsc1262465, BZ 34008 - CVE-2026-4046: Use pending character state in IBM1390, IBM1399 character sets...

glibc-static-nss-poc

glibc-static-nss-poc Proof of Concept demonstrating how stati...

ROOT-OS-DEBIAN-12-CVE-2026-5435 CVE-2026-5435 in rootio-glibc - Patched by Root

Root has patched CVE-2026-5435 in the rootio-glibc package for Root:Debian:12. Multiple fixed versions available...

SUSE SLES15 Security Update : glibc (SUSE-SU-2026:2333-1)

The remote SUSE Linux SLES15 / SLESSAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:2333-1 advisory. This update for glibc fixes the following issues - CVE-2026-4046: assertion failure when converting inputs may be used to remotely...

Security update for glibc

This update for glibc fixes the following issues CVE-2026-4046: assertion failure when converting inputs may be used to remotely crash an application bsc1261206. CVE-2026-5450: stdio-common: scanf %mc pattern will cause heap overflow when width 1024 bsc1262465. CVE-2026-5928: libio: ungetwc could...

SUSE-SU-2026:2333-1 Security update for glibc

This update for glibc fixes the following issues - CVE-2026-4046: assertion failure when converting inputs may be used to remotely crash an application bsc1261206. - CVE-2026-5450: stdio-common: scanf %mc pattern will cause heap overflow when width 1024 bsc1262465. - CVE-2026-5928: libio: ungetwc...

EulerOS 2.0 SP13 : glibc (EulerOS-SA-2026-2333)

According to the versions of the glibc packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : Calling the scanf family of functions with a %mc malloc'd character match in the GNU C Library version 2.7 to version 2.43 with a format width...

EulerOS 2.0 SP11 : glibc (EulerOS-SA-2026-2243)

According to the versions of the glibc packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : The iconv function in the GNU C Library versions 2.43 and earlier may crash due to an assertion failure when converting inputs from the IBM1390 or...

[SECURITY] [DLA 4621-1] glibc security update

------------------------------------------------------------------------- Debian LTS Advisory DLA-4621-1 [email protected] https://www.debian.org/lts/security/ Arnaud Rebillout June 08, 2026 https://wiki.debian.org/LTS -...