High 7.5Published Oct 14, 2026

CVE-2026-102023Junos OS Evolved: An attacker causes denial of service via SNMP when firewall counters are used

Updated under an hour ago (Oct 28, 2026, 4:40 AM ET)

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It affects Juniper Networks Junos OS Evolved. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 0.46%, higher than 40% of scored CVEs.

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Every CVE for Juniper Networks Junos OS Evolved

Exploited in the last 30 days

A Reachable Assertion vulnerability in fwstatsd of Juniper Networks Junos OS Evolved allows an authenticated network attacker to cause a denial of service via an SNMP firewall-counter MIB query when at least one firewall counter is configured.

CVSS: 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-617
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): 0.46% (percentile 40)
Assigned by: juniper
NVD analysis: Awaiting Analysis
Record last updated: Oct 16, 2026
First seen by InfoSec Signals: Oct 14, 2026

Affected products

Affected products

Juniper Networks Junos OS Evolved juniper_networks:junos_os_evolved (from the name)	before 23.2R2-S7.7-EVO; from 23.4 before 23.4R2-S8.11-EVO; from 24.2 before 24.2R2-S5.6-EVO; from 24.4 before 24.4R2-S5-EVO; from 25.2 before 25.2R2-S2-EVO; from 25.4 before 25.4R1-S3-EVO; from 26.2 before 26.2R1-S2-EVO; 23.4X100; and 2 more ranges	CNA record

References

References

https://supportportal.juniper.net/JSA112250	vendor-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.