CVSS v3
7.8
HIGH
EPSS Score
64.7%
exploit probability
CISA KEV
Yes
known exploited
Exploitation
—
SSVC status
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.
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.
Yes. CVE-2023-4911 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 12/12/2023.
CVE-2023-4911 has a CVSS v3 base score of 7.8 (HIGH severity).
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Ranked by exploit probability (EPSS).