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TI-2018-00026 Aliases CVE-2018-0026GHSA-4438-62q8-6hf2

Junos OS: Stateless IP firewall filter rules stop working as expected after reboot or upgrade

Priority LOW 36Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · High · None
Fix status
Fixed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA.

Summary

After Junos OS device reboot or upgrade, the stateless firewall filter configuration may not take effect. This issue can be verified by running the command: user@re0> show interfaces <interface_name> extensive | match filters" CAM destination filters: 0, CAM source filters: 0 Note: when the issue occurs, it does not show the applied firewall filter. The correct output should show the applied firewall filter, for example: user@re0> show interfaces <interface_name> extensive | match filters" CAM destination filters: 0, CAM source filters: 0 Input Filters: FIREWAL_FILTER_NAME-<interface_name> This issue affects firewall filters for every address family. Affected releases are Juniper Networks Junos OS: 15.1R4, 15.1R5, 15.1R6 and SRs based on these MRs. 15.1X8 versions prior to 15.1X8.3.

Why it matters now

EPSS 0.01765 78th percentileScored 2026-11-07
Fix Fixed Junos OS (Juniper Networks): 15.1X8.3

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
JuniperJunos OS15.1R4, 15.1R5, 15.1R6; 15.1X8 to before 15.1X8.315.1X8.3Patch availableCNA
  • Junos OS VendorJuniper Affected 15.1R4, 15.1R5, 15.1R6; 15.1X8 to before 15.1X8.3 Fixed in 15.1X8.3 Patch available CNA

CPE configurations NVD · 4

CPEVersionsRoleVendor
cpe:2.3:o:juniper:junos:15.1:r4:*:*:*:*:*:*15.1 r4VulnerableJuniper
cpe:2.3:o:juniper:junos:15.1:r5:*:*:*:*:*:*15.1 r5VulnerableJuniper
cpe:2.3:o:juniper:junos:15.1:r6:*:*:*:*:*:*15.1 r6VulnerableJuniper
cpe:2.3:o:juniper:junos:15.1x8:*:*:*:*:*:*:*15.1x8VulnerableJuniper
  • cpe:2.3:o:juniper:junos:15.1:r4:*:*:*:*:*:* Versions 15.1 r4 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:15.1:r5:*:*:*:*:*:* Versions 15.1 r5 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:15.1:r6:*:*:*:*:*:* Versions 15.1 r6 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:15.1x8:*:*:*:*:*:*:* Versions 15.1x8 Vulnerable ·Juniper

Remediation

  • Fix · CNA Junos OS (Juniper Networks) Fixed in 15.1X8.3

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-0026
  2. 2026-10-03 Alias added: GHSA-4438-62q8-6hf2

References

Advisory 1

  • TI-2023-18638 Junos OS: EX and SRX Series: A PHP vulnerability in J-Web allows an unauthenticated to… KEVCVSS 3.1CRITICAL 9.8
  • TI-2020-01585 Out of Cycle Security Advisory: Junos OS: Security vulnerability in J-Web and web based (HTTP/HTTPS) services KEVCVSS 3.1CRITICAL 9.8
  • TI-2015-04610 Assertion failure in ISC BIND named via TKEY queries KEVCVSS 3.1HIGH 7.5
  • TI-2025-15550 Junos OS: An local attacker with shell access can execute arbitrary code KEVCVSS 4.0MEDIUM 6.7
  • TI-2023-18644 Junos OS: SRX Series: A vulnerability in J-Web allows an unauthenticated attacker to upload and download arbitrary files KEVCVSS 3.1MEDIUM 5.3
  • TI-2023-18640 Junos OS: EX Series: A vulnerability in J-Web allows an unauthenticated attacker to upload arbitrary files KEVCVSS 3.1MEDIUM 5.3
See all 792 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences