CVE-2018-6921 json
In FreeBSD before 11.1-STABLE(r332066) and 11.1-RELEASE-p10, due to insufficient initialization of memory copied to userland in the network…
published 2018-05-08 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-18665
- cvss
- 5.5
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 23%
- public exploits
- 0
- none known
Summary
In FreeBSD before 11.1-STABLE(r332066) and 11.1-RELEASE-p10, due to insufficient initialization of memory copied to userland in the network subsystem, small amounts of kernel memory may be disclosed to userland processes. Unprivileged authenticated local users may be able to access small amounts of privileged kernel data.
Patch / fix
- freebsd freebsd 11.1
Exploit prediction
0.31% chance of exploitation in the next 30 days, higher than 23% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 5.5 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 2.1 | AV:L/AC:L/Au:N/C:P/I:N/A:N |
Affected products
- FreeBSD FreeBSD
Classification
- Weakness
-
- CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
References
-
security.freebsd.org
/advisories/FreeBSD-EN-18:05.mem.asc
vendor-advisory
-
securityfocus.com
/bid/104118
vdb-entry, third-party-advisory
Sources
- CVE List CVE-2018-6921
- NVD CVE-2018-6921
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.