CVE-2023-4273
A flaw was found in the exFAT driver of the Linux kernel.
Published Aug 9, 2023 · updated Oct 14, 2026 · linux linux kernel
A flaw was found in the exFAT driver of the Linux kernel. The vulnerability exists in the implementation of the file name reconstruction function, which is responsible for reading file name entries from a directory index and merging file name parts belonging to one file into a single long file name. Since the file name characters are copied into a stack variable, a local privileged attacker could use this flaw to overflow the kernel stack.
Timeline
Detection, updates, and resolution for this record.
Aug 9, 2023 · NIST NVD
Detected
A flaw was found in the exFAT driver of the Linux kernel. The vulnerability exists in the implementation of the file name reconstruction function, which is responsible for reading file name entries from a directory index and merging file name parts belonging to one file into a single long file name. Since the file name characters are copied into a stack variable, a local privileged attacker could
Oct 14, 2026 · NIST NVD
Updated
A flaw was found in the exFAT driver of the Linux kernel. The vulnerability exists in the implementation of the file name reconstruction function, which is responsible for reading file name entries from a directory index and merging file name parts belonging to one file into a single long file name. Since the file name characters are copied into a stack variable, a local privileged attacker could
Affected
- cpe debian/debian linux11.0
- cpe fedoraproject/fedora37
- cpe fedoraproject/fedora38
- cpe linux/linux kernelversion unspecified
- cpe linux/linux kernel6.5
- cpe netapp/h300s firmwareversion unspecified
- cpe netapp/h500s firmwareversion unspecified
- cpe netapp/h700s firmwareversion unspecified
- cpe redhat/enterprise linux9.0
Sources
- CVE.orgCVE-2023-4273
Official CVE identifier
cve.org - FIRST EPSSCVE-2023-4273
30-day exploitation probability 0.7%
first.org - NIST NVDCVE-2023-4273
A flaw was found in the exFAT driver of the Linux kernel. The vulnerability exists in the implementation of the file name reconstruction function, which is responsible for reading file name entries from a directory index and merging file name parts belonging to one file into a si
nvd.nist.gov