CVE-2019-5596

VendorfreebsdProductfreebsdDiscoveredFeb 12, 2019UpdatedNov 21, 2024

In FreeBSD 11.2-STABLE after r338618 and before r343786, 12.0-STABLE before r343781, and 12.0-RELEASE before 12.0-RELEASE-p3, a bug in the reference count implementation for UNIX domain sockets can cause a file structure to be incorrectly released potentially allowing a malicious local user to gain root privileges or escape from a jail.

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CVSS v3.1

8.8 HIGH

EPSS

1.23%

probability of exploitation in 30 days

CISA KEV

Not listed

no confirmed exploitation reported

News coverage

sources referencing this CVE

Related IOCs

seen in the same coverage

EPSS Trend

Aug 16, 2026 → Sep 23, 2026

● 0.00pp

1.23% → 1.23% over 9 tracked changes

CVSS v3.1 Detail

Attack VectorLOCAL

Attack ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

ScopeCHANGED

ConfidentialityHIGH

IntegrityHIGH

AvailabilityHIGH

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

Connections

1 relationships

freebsd

source

Timeline

disclosure → media coverage

Feb 12, 2019

Disclosure — published as a CVE record. · last revised by NVD Nov 21, 2024

Public PoC (1)

github.com/raymontag/CVE-2019-5596

Unverified third-party code — review before executing.