How severe is CVE-2019-0054?

CVE-2019-0054 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2019-0054 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-0054?

CVE-2019-0054 primarily affects Juniper Junos. In total, 17 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-0054?

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

When was CVE-2019-0054 published?

CVE-2019-0054 was published on 2019-10-09 and last updated on 2026-06-17.

CVE-2019-0054

CVE-2019-0054 is a medium-severity vulnerability in Juniper Junos with a CVSS 3.x base score of 6.8. 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-295.

Key facts

Severity: Medium (CVSS 3.x base score 6.8)
CVSS v2: 5.8
EPSS exploit prediction: 1% (44th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-295
Affected product: Juniper Junos
Published: 2019-10-09
Last modified: 2026-06-17

Description

An Improper Certificate Validation weakness in the SRX Series Application Identification (app-id) signature update client of Juniper Networks Junos OS allows an attacker to perform Man-in-the-Middle (MitM) attacks which may compromise the integrity and confidentiality of the device. This issue affects: Juniper Networks Junos OS 15.1X49 versions prior to 15.1X49-D120 on SRX Series devices. No other versions of Junos OS are affected.

Frequently asked questions

What is CVE-2019-0054?: An Improper Certificate Validation weakness in the SRX Series Application Identification (app-id) signature update client of Juniper Networks Junos OS allows an attacker to perform Man-in-the-Middle (MitM) attacks which may compromise the integrity and confidentiality of the device. This issue affects: Juniper Networks Junos OS 15.1X49 versions prior to 15.1X49-D120 on SRX Series devices. No other versions of Junos OS are affected.
How severe is CVE-2019-0054?: CVE-2019-0054 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2019-0054 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-0054?: CVE-2019-0054 primarily affects Juniper Junos. In total, 17 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-0054?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-0054 published?: CVE-2019-0054 was published on 2019-10-09 and last updated on 2026-06-17.

References

Affected products (17)

cpe:2.3:o:juniper:junos:15.1x49:-:*:*:*:*:*:*
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: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:*:*:*:*:*:*

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