In FreeBSD 12.1-STABLE before r356035, 12.1-RELEASE before 12.1-RELEASE-p4, 11.3-STABLE before r356036, and 11.3-RELEASE before 11.3-RELEAS…

published 2020-04-28 6y ago modified 2026-06-17 4mo ago also EUVD-2019-6785

cvss: 9.8; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.4%; EPSS 1.4% chance of exploitation in 30 days, percentile 71%
public exploits: 0; none known

In FreeBSD 12.1-STABLE before r356035, 12.1-RELEASE before 12.1-RELEASE-p4, 11.3-STABLE before r356036, and 11.3-RELEASE before 11.3-RELEASE-p8, incomplete packet data validation may result in memory access after it has been freed leading to a kernel panic or other unpredictable results.

Patch / fix

links 1

security.freebsd.org/advisories/FreeBSD-SA-20:10.ipfw.asc advisory

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Exploit prediction

1.35% chance of exploitation in the next 30 days, higher than 71% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
NVD	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	7.5	AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products

n/a FreeBSD

Classification

Weakness

CWE-20 Improper Input Validation
CWE-416 Use After Free

References

security.freebsd.org /advisories/FreeBSD-SA-20:10.ipfw.asc
patch, vendor-advisory
security.netapp.com /advisory/ntap-20200511-0002/
third-party-advisory

Sources

CVE List CVE-2019-15874
NVD CVE-2019-15874

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