CVE-2020-6108: An exploitable code execution vulnerability exists in the fsck_chk_orphan_node functionality of F2fs-Tools F2f

Q: How do I fix CVE-2020-6108?

f2fs-tools: upgrade to 1.14.0. Exact commands for each OS are on this page.

Q: Is CVE-2020-6108 being exploited?

CVE-2020-6108 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2020-6108 affect?

CVE-2020-6108 affects f2fs-tools. Severity is high (CVSS 7.8). An exploitable code execution vulnerability exists in the fsck_chk_orphan_node functionality of F2fs-Tools F2fs.Fsck 1.13. A specially crafted f2fs filesystem can cause a heap buffer overflow resulting in a code execution. An attacker can p

Q: How urgent is CVE-2020-6108?

Priority 53/100. High severity; Public exploit reference

This month

HIGH 7.8UPGRADE

CVE-2020-6108 is a high-severity flaw (CVSS 7.8) affecting f2fs-tools. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An exploitable code execution vulnerability exists in the fsck_chk_orphan_node functionality of F2fs-Tools F2fs.Fsck 1.13. A specially crafted f2fs filesystem can cause a heap buffer overflow resulting in a code execution. An attacker can provide a malicious file to trigger this vulnerability.

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	2.2% (top 17%)
CISA exploited list	No
Weakness	CWE-131, CWE-787
Published	2020-10-15
Last modified	2026-06-17

Publisher (CNA): Talos · Vendor: f2fs-tools project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2020-10-15 15:15 UTCPublished CVE record published
2026-06-17 03:22 UTCUpdated Record last modified

f2fs-tools project f2fs-tools UPGRADE

Affected: < 1.14.0

Fixed in: 1.14.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy f2fs-tools || rpm -q f2fs-tools || f2fs-tools --version

2. UPGRADE to 1.14.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade f2fs-tools

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade f2fs-tools

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
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-2020-6108?

f2fs-tools: upgrade to 1.14.0. Exact commands for each OS are on this page.

Is CVE-2020-6108 being exploited?

CVE-2020-6108 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-2020-6108 affect?

CVE-2020-6108 affects f2fs-tools. Severity is high (CVSS 7.8). An exploitable code execution vulnerability exists in the fsck_chk_orphan_node functionality of F2fs-Tools F2fs.Fsck 1.13. A specially crafted f2fs filesystem can cause a heap buffer overflow resulting in a code execution. An attacker can p

How urgent is CVE-2020-6108?

Priority 53/100. High severity; Public exploit reference

Related CVEs

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-2020-6104 MEDIUM 5.5 UPGRADE An exploitable information disclosure vulnerability exists in the get_dnode_of_data functionality of F2fs-Tool
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

References

← Back to latest CVEs