How severe is CVE-2019-5613?

CVE-2019-5613 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-5613 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-5613?

CVE-2019-5613 primarily affects Freebsd. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-5613?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2019-5613 published?

CVE-2019-5613 was published on 2020-02-18 and last updated on 2026-06-17.

CVE-2019-5613

CVE-2019-5613 is a critical-severity vulnerability in Freebsd with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-345.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 1% (43rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-345
Affected product: Freebsd
Published: 2020-02-18
Last modified: 2026-06-17

Description

In FreeBSD 12.0-RELEASE before 12.0-RELEASE-p13, a missing check in the ipsec packet processor allows reinjection of an old packet to be accepted by the ipsec endpoint. Depending on the higher-level protocol in use over ipsec, this could allow an action to be repeated.

Frequently asked questions

What is CVE-2019-5613?: In FreeBSD 12.0-RELEASE before 12.0-RELEASE-p13, a missing check in the ipsec packet processor allows reinjection of an old packet to be accepted by the ipsec endpoint. Depending on the higher-level protocol in use over ipsec, this could allow an action to be repeated.
How severe is CVE-2019-5613?: CVE-2019-5613 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-5613 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-5613?: CVE-2019-5613 primarily affects Freebsd. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-5613?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2019-5613 published?: CVE-2019-5613 was published on 2020-02-18 and last updated on 2026-06-17.

References

https://security.FreeBSD.org/advisories/FreeBSD-SA-20:02.ipsec.asc

Affected products (12)

cpe:2.3:o:freebsd:freebsd:12.0:-:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:12.0:p1:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:12.0:p10:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:12.0:p11:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:12.0:p12:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:12.0:p2:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:12.0:p3:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:12.0:p4:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:12.0:p6:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:12.0:p7:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:12.0:p8:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:12.0:p9:*:*:*:*:*:*

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