How severe is CVE-2019-0011?

CVE-2019-0011 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-2019-0011 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-0011?

CVE-2019-0011 primarily affects Juniper Junos. In total, 27 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-0011?

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

When was CVE-2019-0011 published?

CVE-2019-0011 was published on 2019-01-15 and last updated on 2026-06-17.

CVE-2019-0011

CVE-2019-0011 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.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 3.3
EPSS exploit prediction: 1% (46th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Juniper Junos
Published: 2019-01-15
Last modified: 2026-06-17

Description

The Junos OS kernel crashes after processing a specific incoming packet to the out of band management interface (such as fxp0, me0, em0, vme0) destined for another address. By continuously sending this type of packet, an attacker can repeatedly crash the kernel causing a sustained Denial of Service. Affected releases are Juniper Networks Junos OS: 17.2 versions prior to 17.2R1-S7, 17.2R3; 17.3 versions prior to 17.3R3-S3; 17.4 versions prior to 17.4R1-S4, 17.4R2; 17.2X75 versions prior to 17.2X75-D110; 18.1 versions prior to 18.1R2.

Frequently asked questions

What is CVE-2019-0011?: The Junos OS kernel crashes after processing a specific incoming packet to the out of band management interface (such as fxp0, me0, em0, vme0) destined for another address. By continuously sending this type of packet, an attacker can repeatedly crash the kernel causing a sustained Denial of Service. Affected releases are Juniper Networks Junos OS: 17.2 versions prior to 17.2R1-S7, 17.2R3; 17.3 versions prior to 17.3R3-S3; 17.4 versions prior to 17.4R1-S4, 17.4R2; 17.2X75 versions prior to 17.2X75-D110; 18.1 versions prior to 18.1R2.
How severe is CVE-2019-0011?: CVE-2019-0011 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-2019-0011 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-0011?: CVE-2019-0011 primarily affects Juniper Junos. In total, 27 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-0011?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-0011 published?: CVE-2019-0011 was published on 2019-01-15 and last updated on 2026-06-17.

References

Affected products (27)

cpe:2.3:o:juniper:junos:17.2:-:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.2:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.2:r1-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.2:r1-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.2:r1-s3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.2:r1-s4:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.2:r1-s5:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.2:r1-s6:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.3:-:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.3:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.3:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.3:r3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.3:r3-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.3:r3-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.4:-:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.4:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.4:r1-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.4:r1-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.4:r1-s3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.2x75:-:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.2x75:d100:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.2x75:d102:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.2x75:d50:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.2x75:d70:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.2x75:d90:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.2x75:d92:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.1:-:*:*:*:*:*:*

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