How severe is CVE-2016-1280?

CVE-2016-1280 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2016-1280 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-1280?

CVE-2016-1280 primarily affects Juniper Junos. In total, 74 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-1280?

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

When was CVE-2016-1280 published?

CVE-2016-1280 was published on 2016-09-09 and last updated on 2026-06-17.

CVE-2016-1280

CVE-2016-1280 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. The underlying weakness is classified as CWE-297.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 6.4
EPSS exploit prediction: 1% (47th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-297
Affected product: Juniper Junos
Published: 2016-09-09
Last modified: 2026-06-17

Description

PKId in Juniper Junos OS before 12.1X44-D52, 12.1X46 before 12.1X46-D37, 12.1X47 before 12.1X47-D30, 12.3 before 12.3R12, 12.3X48 before 12.3X48-D20, 13.3 before 13.3R10, 14.1 before 14.1R8, 14.1X53 before 14.1X53-D40, 14.2 before 14.2R7, 15.1 before 15.1R4, 15.1X49 before 15.1X49-D20, 15.1X53 before 15.1X53-D60, and 16.1 before 16.1R1 allow remote attackers to bypass an intended certificate validation mechanism via a self-signed certificate with an Issuer name that matches a valid CA certificate enrolled in Junos.

Frequently asked questions

What is CVE-2016-1280?: PKId in Juniper Junos OS before 12.1X44-D52, 12.1X46 before 12.1X46-D37, 12.1X47 before 12.1X47-D30, 12.3 before 12.3R12, 12.3X48 before 12.3X48-D20, 13.3 before 13.3R10, 14.1 before 14.1R8, 14.1X53 before 14.1X53-D40, 14.2 before 14.2R7, 15.1 before 15.1R4, 15.1X49 before 15.1X49-D20, 15.1X53 before 15.1X53-D60, and 16.1 before 16.1R1 allow remote attackers to bypass an intended certificate validation mechanism via a self-signed certificate with an Issuer name that matches a valid CA certificate enrolled in Junos.
How severe is CVE-2016-1280?: CVE-2016-1280 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2016-1280 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-1280?: CVE-2016-1280 primarily affects Juniper Junos. In total, 74 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-1280?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2016-1280 published?: CVE-2016-1280 was published on 2016-09-09 and last updated on 2026-06-17.

References

Affected products (74)

cpe:2.3:o:juniper:junos:*:d50:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.1x46:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.1x46:d10:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.1x46:d15:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.1x46:d20:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.1x46:d25:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.1x46:d30:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.1x46:d35:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.1x47:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.1x47:d10:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.1x47:d15:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.1x47:d20:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.1x47:d25:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3:r10:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3:r11:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3:r3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3:r4:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3:r5:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3:r6:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3:r7:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3:r8:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3:r9:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3x48:d10:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3x48:d15:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3x50:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:13.3:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:13.3:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:13.3:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:13.3:r2-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:13.3:r3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:13.3:r4:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:13.3:r5:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:13.3:r6:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:13.3:r7:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:13.3:r8:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:13.3:r9:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:14.1:*:*:*:*:*:*:*

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