CVE-2019-5595

5.5 mediumEPSS 0.3%

Medium (5.5) in freebsd freebsd. EPSS 0.3% chance of exploitation in the next 30 days.

In FreeBSD before 11.2-STABLE(r343782), 11.2-RELEASE-p9, 12.0-STABLE(r343781), and 12.0-RELEASE-p3, kernel callee-save registers are not properly sanitized before return from system calls, potentially allowing some kernel data used in the system call to be exposed.

Severity

CVSS 3.0

5.5 medium

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 28% of CVEs (scores of 2026-10-31)
CWE: CWE-459
Published: 2019-02-12
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

freebsd:freebsd

References

https://security.FreeBSD.org/advisories/FreeBSD-SA-19:01.syscall.asc
https://exchange.xforce.ibmcloud.com/vulnerabilities/156624
https://security.FreeBSD.org/advisories/FreeBSD-SA-19:01.syscall.asc

Check your stack JSON