CVE-2023-4911

HighCVSS 7.8/10Known exploited (CISA KEV)Last modified Oct 14, 2026

Description

A buffer overflow was discovered in the GNU C Library's dynamic loader ld.so while processing the GLIBC_TUNABLES environment variable. This issue could allow a local attacker to use maliciously crafted GLIBC_TUNABLES environment variables when launching binaries with SUID permission to execute code with elevated privileges.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-122 CWE-787

Affected software

No affected versions have been published.

Timeline

Published: Oct 3, 2023
Last modified: Oct 14, 2026
Added to CISA KEV: Nov 21, 2023
NVD status: Analyzed

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