PatchTheCVECVE-2020-6104: An exploitable information disclosure vulnerability exists in the get_dnode_of_data functionality of F2fs-Tool
CVE-2020-6104 is a medium-severity flaw (CVSS 5.5) affecting f2fs-tools. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
An exploitable information disclosure vulnerability exists in the get_dnode_of_data functionality of F2fs-Tools F2fs.Fsck 1.13. A specially crafted f2fs filesystem can cause information disclosure resulting in a information disclosure. An attacker can provide a malicious file to trigger this vulnerability.
Why this priority
- Public exploit reference
A fixed release or distro patch exists.
Risk facts
| CVSS score | 5.5 (Medium) |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | Required |
| EPSS exploit chance | 1.5% (top 26%) |
| CISA exploited list | No |
| Weakness | CWE-125 |
| Published | 2020-10-15 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2020-6104?
f2fs-tools: upgrade to 1.14.0. Exact commands for each OS are on this page.
Is CVE-2020-6104 being exploited?
CVE-2020-6104 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2020-6104 affect?
CVE-2020-6104 affects f2fs-tools. Severity is medium (CVSS 5.5). An exploitable information disclosure vulnerability exists in the get_dnode_of_data functionality of F2fs-Tools F2fs.Fsck 1.13. A specially crafted f2fs filesystem can cause information disclosure resulting in a information disclosure. An a
How urgent is CVE-2020-6104?
Priority 43/100. Public exploit reference
Related CVEs
- CVE-2020-6108 HIGH 7.8 UPGRADE An exploitable code execution vulnerability exists in the fsck_chk_orphan_node functionality of F2fs-Tools F2f
- CVE-2020-6107 MEDIUM 5.5 UPGRADE An exploitable information disclosure vulnerability exists in the dev_read functionality of F2fs-Tools F2fs.Fs
- CVE-2020-6106 MEDIUM 5.5 UPGRADE An exploitable information disclosure vulnerability exists in the init_node_manager functionality of F2fs-Tool
- CVE-2020-6105 HIGH 7.8 UPGRADE An exploitable code execution vulnerability exists in the multiple devices functionality of F2fs-Tools F2fs.Fs
- CVE-2020-6070 HIGH 7.8 DOWNGRADE MITIGATE An exploitable code execution vulnerability exists in the file system checking functionality of fsck.f2fs 1.12