How severe is CVE-2019-0068?

CVE-2019-0068 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2019-0068 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-0068?

CVE-2019-0068 primarily affects Juniper Junos. In total, 85 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-0068?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2019-0068 published?

CVE-2019-0068 was published on 2019-10-09 and last updated on 2026-06-17.

CVE-2019-0068

CVE-2019-0068 is a medium-severity vulnerability in Juniper Junos with a CVSS 3.x base score of 6.5. 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-754.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (67th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-754
Affected product: Juniper Junos
Published: 2019-10-09
Last modified: 2026-06-17

Description

The SRX flowd process, responsible for packet forwarding, may crash and restart when processing specific multicast packets. By continuously sending the specific multicast packets, an attacker can repeatedly crash the flowd process causing a sustained Denial of Service. This issue affects Juniper Networks Junos OS on SRX Series: 12.3X48 versions prior to 12.3X48-D90; 15.1X49 versions prior to 15.1X49-D180; 17.3 versions; 17.4 versions prior to 17.4R2-S5, 17.4R3; 18.1 versions prior to 18.1R3-S6; 18.2 versions prior to 18.2R2-S4, 18.2R3; 18.3 versions prior to 18.3R2-S1, 18.3R3; 18.4 versions prior to 18.4R2; 19.1 versions prior to 19.1R1-S1, 19.1R2.

Frequently asked questions

What is CVE-2019-0068?: The SRX flowd process, responsible for packet forwarding, may crash and restart when processing specific multicast packets. By continuously sending the specific multicast packets, an attacker can repeatedly crash the flowd process causing a sustained Denial of Service. This issue affects Juniper Networks Junos OS on SRX Series: 12.3X48 versions prior to 12.3X48-D90; 15.1X49 versions prior to 15.1X49-D180; 17.3 versions; 17.4 versions prior to 17.4R2-S5, 17.4R3; 18.1 versions prior to 18.1R3-S6; 18.2 versions prior to 18.2R2-S4, 18.2R3; 18.3 versions prior to 18.3R2-S1, 18.3R3; 18.4 versions prior to 18.4R2; 19.1 versions prior to 19.1R1-S1, 19.1R2.
How severe is CVE-2019-0068?: CVE-2019-0068 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2019-0068 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-0068?: CVE-2019-0068 primarily affects Juniper Junos. In total, 85 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-0068?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-0068 published?: CVE-2019-0068 was published on 2019-10-09 and last updated on 2026-06-17.

References

https://kb.juniper.net/JSA10968

Affected products (85)

cpe:2.3:o:juniper:junos:12.3x48:d10:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3x48:d15:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3x48:d20:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3x48:d25:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3x48:d30:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3x48:d35:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3x48:d40:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3x48:d45:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3x48:d50:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3x48:d55:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3x48:d60:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3x48:d65:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3x48:d70:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3x48:d75:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3x48:d80:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3x48:d85:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:15.1x49:d10:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:15.1x49:d100:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:15.1x49:d110:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:15.1x49:d120:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:15.1x49:d130:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:15.1x49:d140:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:15.1x49:d150:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:15.1x49:d160:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:15.1x49:d170:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:15.1x49:d20:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:15.1x49:d30:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:15.1x49:d35:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:15.1x49:d40:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:15.1x49:d45:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:15.1x49:d50:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:15.1x49:d55:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:15.1x49:d60:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:15.1x49:d65:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:15.1x49:d70:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:15.1x49:d75:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:15.1x49:d80:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:15.1x49:d90:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.3:-:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.3:r2:*:*:*:*:*:*

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