CVE-2019-5607 — In FreeBSD 12.0-STABLE before r350222, 12.0-RELEASE before 12.0-RELEASE-p8, 11.3-STABLE before r350223, 11.3-RELEASE before 11.3-RELEASE-p1, and 11.2-RELEASE before 11.2-RELEASE-p12, rights transmitted over a domain socket did not properly release a reference on transmission error allowing a malicious user to cause the reference counter to wrap, forcing a free event

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HIGH

In FreeBSD 12.0-STABLE before r350222, 12.0-RELEASE before 12.0-RELEASE-p8, 11.3-STABLE before r350223, 11.3-RELEASE before 11.3-RELEASE-p1, and 11.2-RELEASE before 11.2-RELEASE-p12, rights transmitted over a domain socket did not properly release a reference on transmission error allowing a malicious user to cause the reference counter to wrap, forcing a free event

Published Jul 26, 2019

7.8

HIGH

CVSS 3.1

EPSS 0.54%

Description

In FreeBSD 12.0-STABLE before r350222, 12.0-RELEASE before 12.0-RELEASE-p8, 11.3-STABLE before r350223, 11.3-RELEASE before 11.3-RELEASE-p1, and 11.2-RELEASE before 11.2-RELEASE-p12, rights transmitted over a domain socket did not properly release a reference on transmission error allowing a malicious user to cause the reference counter to wrap, forcing a free event. This could allow a malicious local user to gain root privileges or escape from a jail.

Affected products

Vendor FreeBSD Product FreeBSD Default
n/a
- Version
  FreeBSD before 12.0-RELEASE-p8
  Status
  affected
  Constraints
  -
- Version
  and before 11.2-RELEASE-p12
  Status
  affected
  Constraints
  -
- Version
  before 11.3-RELEASE-p1
  Status
  affected
  Constraints
  -

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

FreeBSD

n/a

Version	Status	Constraints
FreeBSD before 12.0-RELEASE-p8	affected	-
and before 11.2-RELEASE-p12	affected	-
before 11.3-RELEASE-p1	affected	-

Remediation

No remediation recorded yet.

Metrics

0.54% 0.00536

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.00536

Score over time

2021–2026

EPSS v1
EPSS v5
EPSS v2
EPSS v3

Percentile over time

EPSS v1
EPSS v5
EPSS v2
EPSS v3

Table of values (9 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	0.54% (0.00536)	43.09th	v5 (v2026.06.15)
Sep 20, 2026	0.54% (0.00536)	44.11th	v5 (v2026.06.15)
Jul 20, 2024	0.04% (0.00042)	5.06th	v3 (v2023.03.01)
Mar 7, 2023	0.04% (0.00042)	5.63th	v3 (v2023.03.01)
Mar 6, 2023	0.89% (0.00890)	30.33th	v2 (v2022.01.01)
Apr 1, 2022	0.89% (0.00890)	26.62th	v2 (v2022.01.01)
Jan 6, 2022	1.96% (0.01960)	49.57th	v1
Jan 5, 2022	0.44% (0.00444)	29.04th	v5 (v2026.06.15)
Apr 14, 2021	0.44% (0.00444)	0.00th	v1

Weaknesses (2)

CWE-404

Improper Resource Shutdown or Release

CWE-682

References (3)

http://packetstormsecurity.com/files/153755/FreeBSD-Security-Advisory-FreeBSD-SA-19-17.fd.html
x_refsource_MISCThird Party AdvisoryVDB Entry
https://security.FreeBSD.org/advisories/FreeBSD-SA-19:17.fd.asc
vendor-advisoryx_refsource_FREEBSDVendor Advisory
https://security.netapp.com/advisory/ntap-20190814-0003/
x_refsource_CONFIRMThird Party Advisory

Link	Providers	Tags
http://packetstormsecurity.com/files/153755/FreeBSD-Security-Advisory-FreeBSD-SA-19-17.fd.html		x_refsource_MISCThird Party AdvisoryVDB Entry
https://security.FreeBSD.org/advisories/FreeBSD-SA-19:17.fd.asc		vendor-advisoryx_refsource_FREEBSDVendor Advisory
https://security.netapp.com/advisory/ntap-20190814-0003/		x_refsource_CONFIRMThird Party Advisory