How severe is CVE-2018-0050?

CVE-2018-0050 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-2018-0050 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-0050?

CVE-2018-0050 primarily affects Juniper Junos. In total, 31 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-0050?

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-2018-0050 published?

CVE-2018-0050 was published on 2018-10-10 and last updated on 2026-06-17.

CVE-2018-0050

CVE-2018-0050 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-20.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 4.3
EPSS exploit prediction: 2% (81st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Juniper Junos
Published: 2018-10-10
Last modified: 2026-06-17

Description

An error handling vulnerability in Routing Protocols Daemon (RPD) of Juniper Networks Junos OS allows an attacker to cause RPD to crash. Continued receipt of this malformed MPLS RSVP packet will cause a sustained Denial of Service condition. Affected releases are Juniper Networks Junos OS: 14.1 versions prior to 14.1R8-S5, 14.1R9; 14.1X53 versions prior to 14.1X53-D48 on QFX Switching; 14.2 versions prior to 14.1X53-D130 on QFabric System; 14.2 versions prior to 14.2R4. This issue does not affect versions of Junos OS before 14.1R1. Junos OS RSVP only supports IPv4. IPv6 is not affected by this issue. This issue require it to be received on an interface configured to receive this type of traffic.

Frequently asked questions

What is CVE-2018-0050?: An error handling vulnerability in Routing Protocols Daemon (RPD) of Juniper Networks Junos OS allows an attacker to cause RPD to crash. Continued receipt of this malformed MPLS RSVP packet will cause a sustained Denial of Service condition. Affected releases are Juniper Networks Junos OS: 14.1 versions prior to 14.1R8-S5, 14.1R9; 14.1X53 versions prior to 14.1X53-D48 on QFX Switching; 14.2 versions prior to 14.1X53-D130 on QFabric System; 14.2 versions prior to 14.2R4. This issue does not affect versions of Junos OS before 14.1R1. Junos OS RSVP only supports IPv4. IPv6 is not affected by this issue. This issue require it to be received on an interface configured to receive this type of traffic.
How severe is CVE-2018-0050?: CVE-2018-0050 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-2018-0050 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-0050?: CVE-2018-0050 primarily affects Juniper Junos. In total, 31 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-0050?: 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-2018-0050 published?: CVE-2018-0050 was published on 2018-10-10 and last updated on 2026-06-17.

References

Affected products (31)

cpe:2.3:o:juniper:junos:14.1:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:14.1:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:14.1:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:14.1:r3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:14.1:r4:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:14.1:r5:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:14.1:r6:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:14.1:r7:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:14.1:r9:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:14.1x53:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:14.1x53:d10:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:14.1x53:d121:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:14.1x53:d15:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:14.1x53:d16:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:14.1x53:d25:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:14.1x53:d26:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:14.1x53:d27:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:14.1x53:d30:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:14.1x53:d35:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:14.1x53:d40:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:14.1x53:d42:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:14.1x53:d43:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:14.1x53:d44:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:14.1x53:d45:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:14.1x53:d46:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:14.1x53:d47:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:14.1x53:d48:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:14.2:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:14.2:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:14.2:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:14.2:r3:*:*:*:*:*:*

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