CVE-2023-4260 json
Potential off-by-one buffer overflow vulnerability in the Zephyr FS subsystem
published 2023-09-26 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-54131
- cvss
- 6.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.9%
- EPSS 0.9% chance of exploitation in 30 days, percentile 58%
- public exploits
- 0
- none known
Summary
Potential off-by-one buffer overflow vulnerability in the Zephyr fuse file system.
Exploit prediction
0.87% chance of exploitation in the next 30 days, higher than 58% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-gj27-862r-55wh referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.3 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L |
| NVD | 3.1 | 10.0 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
Affected products
- zephyrproject-rtos Zephyr
Classification
References
-
github.com
/zephyrproject-rtos/zephyr/security/advisories/GHSA-gj27-862r-55wh
exploit, vendor-advisory
-
openwall.com
/lists/oss-security/2023/11/07/1
mailing-list
-
seclists.org
/fulldisclosure/2023/Nov/1
mailing-list, third-party-advisory
-
packetstormsecurity.com
/files/175657/Zephyr-RTOS-3.x.0-Buffer-Overflows.html
third-party-advisory
Sources
- CVE List CVE-2023-4260
- NVD CVE-2023-4260
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