How severe is CVE-2016-1275?

CVE-2016-1275 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2016-1275 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-1275?

CVE-2016-1275 primarily affects Juniper Junos. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-1275?

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

When was CVE-2016-1275 published?

CVE-2016-1275 was published on 2016-09-09 and last updated on 2026-06-17.

CVE-2016-1275

CVE-2016-1275 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-399.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 6.1
EPSS exploit prediction: 1% (57th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-399
Affected product: Juniper Junos
Published: 2016-09-09
Last modified: 2026-06-17

Description

Juniper Junos OS before 13.3R9, 14.1R6 before 14.1R6-S1, and 14.1 before 14.1R7, when configured with VPLS routing-instances, allows remote attackers to obtain sensitive mbuf information by injecting a flood of Ethernet frames with IPv6 MAC addresses directly into a connected interface.

Frequently asked questions

What is CVE-2016-1275?: Juniper Junos OS before 13.3R9, 14.1R6 before 14.1R6-S1, and 14.1 before 14.1R7, when configured with VPLS routing-instances, allows remote attackers to obtain sensitive mbuf information by injecting a flood of Ethernet frames with IPv6 MAC addresses directly into a connected interface.
How severe is CVE-2016-1275?: CVE-2016-1275 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2016-1275 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-1275?: CVE-2016-1275 primarily affects Juniper Junos. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-1275?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2016-1275 published?: CVE-2016-1275 was published on 2016-09-09 and last updated on 2026-06-17.

References

Affected products (8)

cpe:2.3:o:juniper:junos:*:r8:*:*:*:*:*:*
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:*:*:*:*:*:*

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