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CVE-2019-5607

25
FAUCET Score

CVE-2019-5607 is a critical vulnerability affecting FreeBSD versions 12.0-STABLE, 12.0-RELEASE, 11.3-STABLE, 11.3-RELEASE, and 11.2-RELEASE. It stems from an improper reference count release when rights are transmitted over a domain socket, allowing a malicious local user to manipulate the reference counter. This flaw carries a CVSS v3.1 score of 7.8 (High), indicating that a low-privileged local attacker can achieve high impact on confidentiality, integrity, and availability with low attack complexity. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
11.0CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:11.0:-:*:*:*:*:*:*
11.2CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:11.2:-:*:*:*:*:*:*
11.3CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:11.3:-:*:*:*:*:*:*
12.0CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:12.0:-:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.54%
Probability of exploitation in next 30 days
EPSS Percentile
42.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0054 is in the 82nd percentile among its peer group of 17,070 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

packetstormsecurity.com / files/153755/FreeBSD-Security-Advisory-FreeBSD-SA-19-17.fd.html
Third Party AdvisoryVDB Entry
security.freebsd.org / advisories/FreeBSD-SA-19:17.fd.asc
Vendor Advisory
security.netapp.com / advisory/ntap-20190814-0003
Third Party Advisory