CVE-2026-102081 (GCVE-0-2026-102081)

Vulnerability from cvelistv5 – Published: 2026-10-14 16:26 – Updated: 2026-10-14 20:46
VLAI
Title
Junos OS: SRX4000 Series, SRX5000 Series and MX Series with SPC3: With application services configured, high session churn causes memory leak which will ultimately impact traffic
Summary
A Missing Release of Memory after Effective Lifetime vulnerability in the packet forwarding engine (PFE) of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a complete Denial-of-Service (DoS). On SRX4000 Series, and SRX5000 Series with SPC3, and MX Series with SPC3, when one or more specific application services like ALGs, IDP/DPI, APPID, SECINTEL, AAMW or AppQoE are configured, a high connections per second churn will cause PFE memory to leak. If the memory is exhausted traffic processing will be impacted. Use the CLI command show security monitoring to monitor the memory utilization of the PFEs on the FPCs. This issue affects Junos OS on SRX Series and MX Series: * 23.4 versions from 23.4R2-S3 before 23.4R2-S7; * 24.2 versions from 24.2R2 before 24.2R2-S3; * 24.4 versions before 24.4R2-S3; * 25.2 versions before 25.2R1-S2, 25.2R2.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/AU:Y/R:U/RE:M
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-14 20:38 UTC
CWE
  • CWE-401 - Improper Release of Memory Before Removing Last Reference
Assigner
juniper CNA under the mitre root
CNA scorecard B 85/100 over 175 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Juniper Networks Junos OS Affected: 23.4R2-S3 , < 23.4R2-S7 (custom)
Affected: 24.2R2 , < 24.2R2-S3 (custom)
Affected: 24.4 , < 24.4R2-S3 (custom)
Affected: 25.2 , < 25.2R1-S2, 25.2R2 (custom)
guessed Create a notification for this product.
Date Public
2026-10-14 16:00
Show details on NVD website
To clipboard 

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            "orgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968",
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            "advisory": "JSA112177",
            "defect": [
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            "discovery": "USER"
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          "title": "Junos OS: SRX4000 Series, SRX5000 Series and MX Series with SPC3: With application services configured, high session churn causes memory leak which will ultimately impact traffic",
          "workarounds": [
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        "assignerShortName": "juniper",
        "cveId": "CVE-2026-102081",
        "datePublished": "2026-10-14T16:26:14.921Z",
        "dateReserved": "2026-09-28T17:37:38.548Z",
        "dateUpdated": "2026-10-14T20:46:19.992Z",
        "state": "PUBLISHED"
      },
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    }
  }
}



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