CVE-2019-0065

CVE-2019-0065 is a medium-severity vulnerability in Juniper Junos with a CVSS 3.x base score of 5.3. 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 5.3)
• CVSS v2: 4.3
• EPSS exploit prediction: 1% (66th percentile)
• Actively exploited: Not listed in CISA KEV
• Affected product: Juniper Junos
• Published: 2019-10-09
• Last modified: 2026-06-17

Description

On MX Series, when the SIP ALG is enabled, receipt of a certain malformed SIP packet may crash the MS-PIC component on MS-MIC or MS-MPC. By continuously sending a crafted SIP packet, an attacker can repeatedly bring down MS-PIC on MS-MIC/MS-MPC causing a sustained Denial of Service. This issue affects Juniper Networks Junos OS on MX Series: 16.1 versions prior to 16.1R7-S5; 16.2 versions prior to 16.2R2-S11; 17.1 versions prior to 17.1R3; 17.2 versions prior to 17.2R3-S3; 17.3 versions prior to 17.3R3-S6 ; 17.4 versions prior to 17.4R2-S8, 17.4R3; 18.1 versions prior to 18.1R3-S3; 18.2 versions prior to 18.2R3; 18.3 versions prior to 18.3R2; 18.4 versions prior to 18.4R2.

Frequently asked questions

What is CVE-2019-0065?

On MX Series, when the SIP ALG is enabled, receipt of a certain malformed SIP packet may crash the MS-PIC component on MS-MIC or MS-MPC. By continuously sending a crafted SIP packet, an attacker can repeatedly bring down MS-PIC on MS-MIC/MS-MPC causing a sustained Denial of Service. This issue affects Juniper Networks Junos OS on MX Series: 16.1 versions prior to 16.1R7-S5; 16.2 versions prior to 16.2R2-S11; 17.1 versions prior to 17.1R3; 17.2 versions prior to 17.2R3-S3; 17.3 versions prior to 17.3R3-S6 ; 17.4 versions prior to 17.4R2-S8, 17.4R3; 18.1 versions prior to 18.1R3-S3; 18.2 versions prior to 18.2R3; 18.3 versions prior to 18.3R2; 18.4 versions prior to 18.4R2.

How severe is CVE-2019-0065?

CVE-2019-0065 has a CVSS 3.x base score of 5.3, rated medium 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 low.

Is CVE-2019-0065 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-0065?

CVE-2019-0065 primarily affects Juniper Junos. In total, 89 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-0065?

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

When was CVE-2019-0065 published?

CVE-2019-0065 was published on 2019-10-09 and last updated on 2026-06-17.

References

• https://kb.juniper.net/JSA10964

Affected products (89)

• 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:r3-s10:*:*:*:*:*:*
• cpe:2.3:o:juniper:junos:16.1:r3-s11:*:*:*:*:*:*
• 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:r5-s4:*:*:*:*:*:*
• cpe:2.3:o:juniper:junos:16.1:r6:*:*:*:*:*:*
• cpe:2.3:o:juniper:junos:16.1:r6-s1:*:*:*:*:*:*
• cpe:2.3:o:juniper:junos:16.1:r6-s6:*:*:*:*:*:*
• cpe:2.3:o:juniper:junos:16.1:r7:*:*:*:*:*:*
• cpe:2.3:o:juniper:junos:16.1:r7-s3:*:*:*:*:*:*
• cpe:2.3:o:juniper:junos:16.1:r7-s4:*:*:*:*:*:*
• 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:16.2:r2-s1:*:*:*:*:*:*
• cpe:2.3:o:juniper:junos:16.2:r2-s10:*:*:*:*:*:*
• cpe:2.3:o:juniper:junos:16.2:r2-s2:*:*:*:*:*:*
• cpe:2.3:o:juniper:junos:16.2:r2-s5:*:*:*:*:*:*
• cpe:2.3:o:juniper:junos:16.2:r2-s6:*:*:*:*:*:*
• cpe:2.3:o:juniper:junos:16.2:r2-s7:*:*:*:*:*:*
• cpe:2.3:o:juniper:junos:16.2:r2-s8:*:*:*:*:*:*
• cpe:2.3:o:juniper:junos:16.2:r2-s9:*:*:*:*:*:*
• 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-s1:*:*:*:*:*:*
• cpe:2.3:o:juniper:junos:17.1:r2-s10:*:*:*:*:*:*
• cpe:2.3:o:juniper:junos:17.1:r2-s2:*:*:*:*:*:*
• cpe:2.3:o:juniper:junos:17.1:r2-s3:*:*:*:*:*:*
• cpe:2.3:o:juniper:junos:17.1:r2-s4:*:*:*:*:*:*
• cpe:2.3:o:juniper:junos:17.1:r2-s5:*:*:*:*:*:*
• cpe:2.3:o:juniper:junos:17.1:r2-s6:*:*:*:*:*:*
• cpe:2.3:o:juniper:junos:17.1:r2-s7:*:*:*:*:*:*
• cpe:2.3:o:juniper:junos:17.2:-:*:*:*:*:*:*
• cpe:2.3:o:juniper:junos:17.2:r1-s2:*:*:*:*:*:*
• cpe:2.3:o:juniper:junos:17.2:r1-s4:*:*:*:*:*:*
• cpe:2.3:o:juniper:junos:17.2:r1-s7:*:*:*:*:*:*

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