CVE-2023-4260
Potential off-by-one buffer overflow vulnerability in the Zephyr FS subsystem
Potential off-by-one buffer overflow vulnerability in the Zephyr fuse file system.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
Potential off-by-one buffer overflow vulnerability in the Zephyr FS subsystem
Potential off-by-one buffer overflow vulnerability in the Zephyr fuse file system.
- Record
CVE-2023-4260- CVSS 3.1
- 6.3 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L - Weakness
- CWE-120, CWE-193
- Updated
- 2026-11-02
EUVDEUVD-2023-54131
Potential off-by-one buffer overflow vulnerability in the Zephyr fuse file system.
- Record
EUVD-2023-54131- CVSS 3.1
- 6.3 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L - Updated
- 2026-11-03
NVD
Potential off-by-one buffer overflow vulnerability in the Zephyr fuse file system.
- Record
CVE-2023-4260- CVSS 3.1
- 6.3 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L - CVSS 3.1
- 10.0 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H - Weakness
- CWE-120, CWE-193
- Updated
- 2026-11-02
OSV
Potential off-by-one buffer overflow vulnerability in the Zephyr FS subsystem
Potential off-by-one buffer overflow vulnerability in the Zephyr fuse file system.
- Record
CVE-2023-4260- CVSS 3.1
- 6.3 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L - Weakness
- CWE-120, CWE-193
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-4260 is a medium vulnerability (CVSS 6.3) in Zephyrproject Zephyr, published September 26, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.87%, the 59th percentile. No source names a fixed version.
References
github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-gj27-862r-55wh
openwall.com/lists/oss-security/2023/11/07/1
seclists.org/fulldisclosure/2023/Nov/1
packetstormsecurity.com/files/175657/Zephyr-RTOS-3.x.0-Buffer-Overflows.html
nvd.nist.gov/vuln/detail/CVE-2023-4260