Junos OS: Improper Check for Unusual or Exceptional Conditions vulnerability in the packet forwarding engine (PFE) of Junipe…
Summary
An Improper Check for Unusual or Exceptional Conditions vulnerability in the packet forwarding engine (PFE) of Juniper Networks Junos OS on MX Series allows adjacent subscribers to bypass configured firewall filters. On MX Series devices with MPC10/11, LC4800/9600, and MX304 with subscribers configured on static interfaces, ingress firewall filters are not enforced, so that neither protocol level nor upstream bandwidth limitation are in effect. This issue affects Junos OS on MX with MPC10/11, LC4800/9600/4802, and MX304: * 23.2 versions from 23.2R2-S1 before 23.2R2-S7, * 23.4 versions from 23.4R2 before 23.4R2-S7, * 24.2 versions before 24.2R2-S3, * 24.4 versions before 24.4R2-S2, * 25.2 versions before 25.2R2.
- 23.2
- 23.4
- 24.2
- 24.4
- 25.2
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
- 23.2R2-S7
- 23.4R2-S7
- 24.2R2-S3
- 24.4R2-S2
- 25.2R2
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
Mitigation
Mitigation steps weren't captured by the parser for this advisory — this is a parsing gap, not a statement that no fix exists. Read the vendor advisory below for the authoritative guidance.
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
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