Vulnerability Monitor

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CVE-2016-1276

Juniper Junos OS before 12.1X46-D50, 12.1X47 before 12.1X47-D23, 12.3X48 before 12.3X48-D25, and 15.1X49 before 15.1X49-D40 on a High-End SRX-Series chassis system with one or more Application Layer Gateways (ALGs) enabled allow remote attackers to cause a denial of service (CPU consumption, fab link failure, or flip-flop failovers) via vectors related to in-transit traffic matching ALG rules.

Security Impact Summary

This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 5.9, indicating it can be exploited remotely over the network but requires specific conditions to be met without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts and availability (service disruption) for affected systems. Impacting 1 product from juniper organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2016, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.

Published

2016-08-05T15:59:04.177

Last Modified

2025-04-12T10:46:40.837

Status

Deferred

Source

[email protected]

Severity

CVSSv3.0: 5.9 (MEDIUM)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:N/I:N/A:C

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: COMPLETE

Exploitability Score

8.6

Impact Score

6.9

Weaknesses

Type: Primary
CWE-399

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	juniper	junos	12.1x46	Yes
Operating System	juniper	junos	12.1x46	Yes
Operating System	juniper	junos	12.1x46	Yes
Operating System	juniper	junos	12.1x46	Yes
Operating System	juniper	junos	12.1x46	Yes
Operating System	juniper	junos	12.1x46	Yes
Operating System	juniper	junos	12.1x46	Yes
Operating System	juniper	junos	12.1x46	Yes
Operating System	juniper	junos	12.1x46	Yes
Operating System	juniper	junos	12.1x47	Yes
Operating System	juniper	junos	12.1x47	Yes
Operating System	juniper	junos	12.1x47	Yes
Operating System	juniper	junos	12.1x47	Yes
Operating System	juniper	junos	12.3x48	Yes
Operating System	juniper	junos	12.3x48	Yes
Operating System	juniper	junos	15.1x49	Yes
Operating System	juniper	junos	15.1x49	Yes
Operating System	juniper	junos	15.1x49	Yes
Operating System	juniper	junos	15.1x49	Yes
Operating System	juniper	junos	15.1x49	Yes

References

http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10751 Mitigation, Vendor Advisory ([email protected])
http://www.securityfocus.com/bid/91764 Third Party Advisory, VDB Entry ([email protected])
http://www.securitytracker.com/id/1036305 Third Party Advisory, VDB Entry ([email protected])
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10751 Mitigation, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/91764 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id/1036305 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For juniper's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.