How severe is CVE-2019-0019?

CVE-2019-0019 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2019-0019 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-0019?

CVE-2019-0019 primarily affects Juniper Junos. In total, 39 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-0019?

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

When was CVE-2019-0019 published?

CVE-2019-0019 was published on 2019-04-10 and last updated on 2026-06-17.

CVE-2019-0019

CVE-2019-0019 is a high-severity vulnerability in Juniper Junos with a CVSS 3.x base score of 7.5. 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-404.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (63rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-404
Affected product: Juniper Junos
Published: 2019-04-10
Last modified: 2026-06-17

Description

When BGP tracing is enabled an incoming BGP message may cause the Junos OS routing protocol daemon (rpd) process to crash and restart. While rpd restarts after a crash, repeated crashes can result in an extended DoS condition. Affected releases are Juniper Networks Junos OS: 16.1 versions prior to 16.1R7-S4, 16.1R7-S5; 16.2 versions prior to 16.2R2-S9, 16.2R3; 17.1 versions prior to 17.1R3; 17.2 versions prior to 17.2R3-S1; 17.3 versions prior to 17.3R3-S3, 17.3R3-S4, 17.3R4; 17.4 versions prior to 17.4R1-S7, 17.4R2-S3, 17.4R2-S4, 17.4R3; 18.1 versions prior to 18.1R2-S4, 18.1R3-S4, 18.1R4; 18.2 versions prior to 18.2R2-S2, 18.2R2-S3, 18.2R3; 18.2X75 versions prior to 18.2X75-D40; 18.3 versions prior to 18.3R1-S3, 18.3R2; 18.4 versions prior to 18.4R1-S2, 18.4R2. This issue does not affect Junos releases prior to 16.1R1.

Frequently asked questions

What is CVE-2019-0019?: When BGP tracing is enabled an incoming BGP message may cause the Junos OS routing protocol daemon (rpd) process to crash and restart. While rpd restarts after a crash, repeated crashes can result in an extended DoS condition. Affected releases are Juniper Networks Junos OS: 16.1 versions prior to 16.1R7-S4, 16.1R7-S5; 16.2 versions prior to 16.2R2-S9, 16.2R3; 17.1 versions prior to 17.1R3; 17.2 versions prior to 17.2R3-S1; 17.3 versions prior to 17.3R3-S3, 17.3R3-S4, 17.3R4; 17.4 versions prior to 17.4R1-S7, 17.4R2-S3, 17.4R2-S4, 17.4R3; 18.1 versions prior to 18.1R2-S4, 18.1R3-S4, 18.1R4; 18.2 versions prior to 18.2R2-S2, 18.2R2-S3, 18.2R3; 18.2X75 versions prior to 18.2X75-D40; 18.3 versions prior to 18.3R1-S3, 18.3R2; 18.4 versions prior to 18.4R1-S2, 18.4R2. This issue does not affect Junos releases prior to 16.1R1.
How severe is CVE-2019-0019?: CVE-2019-0019 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2019-0019 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-0019?: CVE-2019-0019 primarily affects Juniper Junos. In total, 39 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-0019?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2019-0019 published?: CVE-2019-0019 was published on 2019-04-10 and last updated on 2026-06-17.

References

Affected products (39)

cpe:2.3:o:juniper:junos:16.1:-:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:16.1:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:16.1:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:16.1:r3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:16.1:r4:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:16.1:r5:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:16.1:r6:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:16.2:-:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:16.2:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:16.2:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.1:-:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.1:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.1:r2:*:*:*:*:*:*
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:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.2:r3:*:*:*:*:*:*
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:r2-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.3:r2-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:17.3:r3:*:*:*:*:*:*
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:18.1:-:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.1:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.1:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.2x75:-:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.2x75:d20:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.2x75:d5:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.3:-:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.3:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.3:r1-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.3:r1-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.4:-:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.4:r1:*:*:*:*:*:*

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