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CVE-2018-6559
The Linux kernel, as used in Ubuntu 18.04 LTS and Ubuntu 18.10, allows local users to obtain names of files in which they would not…
- 3.3LowCVSS base score
- 0.53%Exploitation in 30 daysEPSS · top 55% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
The Linux kernel, as used in Ubuntu 18.04 LTS and Ubuntu 18.10, allows local users to obtain names of files in which they would not normally be able to access via an overlayfs mount inside of a user namespace.
Timeline
ID reserved
By canonical
- 9 months later
· 9 months later
Published
- 6 years later
· 6 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | Low3.3 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
- EPSS (exploitation in 30 days)
- 0.53% · top 55% of all CVEs (10 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 3.3.
Affected products
Canonical Ltd. · Linux kernel, as used in Ubuntu 18.04 LTS and Ubuntu 18.10
- affected 4.15.0-38.41
- affected 4.18.0-10.11
References
9
- 105752 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- USN-3836-2 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-3835-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- https://people.canonical.com/~ubuntu-security/cve/2018/CVE-2018-6559.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://lists.ubuntu.com/archives/kernel-team/2018-October/096172.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- USN-3833-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-3832-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- https://launchpad.net/bugs/1793458 (opens in a new tab)x_refsource_CONFIRMx_transferred
- USN-3836-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2018-18310 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2018-6559)Record last updated .