How severe is CVE-2016-1279?

CVE-2016-1279 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2016-1279 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-1279?

CVE-2016-1279 primarily affects Juniper Junos. In total, 64 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-1279?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2016-1279 published?

CVE-2016-1279 was published on 2016-09-09 and last updated on 2026-06-17.

CVE-2016-1279

CVE-2016-1279 is a critical-severity vulnerability in Juniper Junos with a CVSS 3.x base score of 9.8. 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-200.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 3% (85th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Juniper Junos
Published: 2016-09-09
Last modified: 2026-06-17

Description

J-Web in Juniper Junos OS before 12.1X46-D45, 12.1X46-D50, 12.1X47 before 12.1X47-D35, 12.3 before 12.3R12, 12.3X48 before 12.3X48-D25, 13.3 before 13.3R10, 13.3R9 before 13.3R9-S1, 14.1 before 14.1R7, 14.1X53 before 14.1X53-D35, 14.2 before 14.2R6, 15.1 before 15.1A2 or 15.1F4, 15.1X49 before 15.1X49-D30, and 15.1R before 15.1R3 might allow remote attackers to obtain sensitive information and consequently gain administrative privileges via unspecified vectors.

Frequently asked questions

What is CVE-2016-1279?: J-Web in Juniper Junos OS before 12.1X46-D45, 12.1X46-D50, 12.1X47 before 12.1X47-D35, 12.3 before 12.3R12, 12.3X48 before 12.3X48-D25, 13.3 before 13.3R10, 13.3R9 before 13.3R9-S1, 14.1 before 14.1R7, 14.1X53 before 14.1X53-D35, 14.2 before 14.2R6, 15.1 before 15.1A2 or 15.1F4, 15.1X49 before 15.1X49-D30, and 15.1R before 15.1R3 might allow remote attackers to obtain sensitive information and consequently gain administrative privileges via unspecified vectors.
How severe is CVE-2016-1279?: CVE-2016-1279 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2016-1279 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-1279?: CVE-2016-1279 primarily affects Juniper Junos. In total, 64 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-1279?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2016-1279 published?: CVE-2016-1279 was published on 2016-09-09 and last updated on 2026-06-17.

References

Affected products (64)

cpe:2.3:o:juniper:junos:*:d40:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.1x46:d50:*:*:*:*:*:*
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:12.1x47:d30:*:*:*:*:*:*
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: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:*:*:*:*:*:*:*
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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