KEV · Actively exploited
CVE-2023-4911
CVE-2023-4911 is actively exploited (CISA KEV catalog) : high severity (CVSS 7.8), 0 tracked apps concerned, none still exposed on their current version.
- Severity (CVSS)
- 7.8
- Exploitation
- Confirmed
- Tracked apps
- 0
- Still exposed
- 0
NVD scale
CISA KEV · EPSS predicts 63.8 %
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.
Attack vector : Local
No user interaction
Show raw CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
63.77%
predictive model; CISA confirms active exploitation
percentile 99.2%
CISA Known Exploited Vulnerability
- Added to KEV
- 2023-11-21
- Remediation deadline
- 2023-12-12
- Required action
- Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
- Ransomware
- Unknown (not documented by CISA)
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