What is CVE-2016-1883?

CVE-2016-1883 is a high-severity vulnerability in FreeBSD, classified under CWE-264. CVSS score: 7.8/10. Published 2017-02-15.

How severe is CVE-2016-1883?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in FreeBSD

CVE-2016-1883

The issetugid system call in the Linux compatibility layer in FreeBSD 9.3, 10.1, and 10.2 allows local users to gain privilege via unspecified vectors.

Published 2017-02-15 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.004 (29.4th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 29th percentile — 29.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

FreeBSD — versions 9.3, 10.1, 10.2

Weakness classification (CWE)

CWE-264

References

www.securitytracker.com/id/1034872 (VDB Entry, Third Party Advisory, vdb-entry)
www.freebsd.org/security/advisories/FreeBSD-SA-16:10.linux.asc (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2016-1883?: CVE-2016-1883 is a high-severity vulnerability in FreeBSD, classified under CWE-264. CVSS score: 7.8/10. Published 2017-02-15.
How severe is CVE-2016-1883?: High severity. CVSS v3 base score is 7.8 out of 10.