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CVE-2026-102023

CVE-2026-102023

validatedZero produced an exploit or a check.

GHSA-whvc-jqf2-crr7 ↗EUVD-2026-101348 ↗

check availableZero validated a working check for it.not proven exploitableZero has a detection check, but hasn't produced a full working exploit yet.
cve.orgpublic pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).kevAttacks confirmed in the real world.
Juniper Networks Junos OS Evolved < 23.2R2-S7.7-EVO; >= 23.4, < 23.4R2-S8.11-EVO; >= 24.2, < 24.2R2-S5.6-EVO; >= 24.4, < 24.4R2-S5-EVO; >= 25.2, < 25.2R2-S2-EVO; >= 25.4, < 25.4R1-S3-EVO; >= 26.2, < 26.2R1-S2-EVO; 23.4X100; >= 25.2X100, < 25.2X100-D35-EVO; >= 25.4X300, < 25.4X300-D40-EVO
fixed in 23.2R2-S7.7-EVO, 23.4R2-S8.11-EVO, 24.2R2-S5.6-EVO, 24.4R2-S5-EVO, 25.2R2-S2-EVO, 25.4R1-S3-EVO, 26.2R1-S2-EVO, 25.2X100-D35-EVO, 25.4X300-D40-EVO
CWE-617 Reachable Assertion
ETK-2026-1630Zero's internal tracking ID, independent of the CVE number., permanent identifier
cvss8.7cna vendorCVSS: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:A/V:C/RE:M
+1.5dTTV
9mAI analysisAnalysis: how long the AI spent reversing this signal.
Check if you are vulnerable
timeline
0 = cve.org publication
trigger signal (cve.org) +0hcheck available+35h12magent stopped
0
+12h
+24h

description

Junos OS Evolved fwstatsd is affected by a reachable assertion condition in SNMP firewall-counter MIB handling. An authenticated network attacker can cause a denial of service when at least one firewall counter is configured.

mitigation

Upgrade Junos OS Evolved to 23.2R2-S7.7-EVO, 23.4R2-S8.11-EVO, 24.2R2-S5.6-EVO, 24.4R2-S5-EVO, 25.2R2-S2-EVO, 25.4R1-S3-EVO, 26.2R1-S2-EVO, 25.2X100-D35-EVO, or 25.4X300-D40-EVO, as applicable to your release train. Restrict SNMP access to authorized management systems until upgrades are complete.

fixed in 23.2R2-S7.7-EVO, 23.4R2-S8.11-EVO, 24.2R2-S5.6-EVO, 24.4R2-S5-EVO, 25.2R2-S2-EVO, 25.4R1-S3-EVO, 26.2R1-S2-EVO, 25.2X100-D35-EVO, 25.4X300-D40-EVO

check
available
exploit
no
automationDeterministic: a check that runs on its own, the same request on every target. Contextual: an agentic technique that needs to be applied per target, for bugs that depend on contextual flows.
contextual
auth requiredWhether an attacker needs an account first, based on the CVSS vector's Privileges Required.
no
EPSSEstimate of the chance this CVE is exploited in the next 30 days. Refreshed daily.
0.46%38th percentile
agent run time
9m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-10-14 16:47Z
Δ to public pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).
–
Δ to kevAttacks confirmed in the real world.
–

outcome

Contextual check: a technique exists and was validated, but no deterministic check could cover this one.

source signals

Public signals that triggered or updated the pipeline. These are inputs for the deltas above.

  1. 2026-10-14 16:47Z
    cve_org: trigger signal, started the run
    https://www.cve.org/CVERecord?id=CVE-2026-102023

this entry in the feed

GET /api/v1/feed/CVE-2026-102023

{
  "etk_id": "ETK-2026-1630",
  "cve_id": "CVE-2026-102023",
  "display_id": "CVE-2026-102023",
  "ghsa_id": "GHSA-whvc-jqf2-crr7",
  "euvd_id": "EUVD-2026-101348",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Reachable assertion denial of service in Junos OS Evolved fwstatsd",
  "summary": "Junos OS Evolved fwstatsd is affected by a reachable assertion condition in SNMP firewall-counter MIB handling. An authenticated network attacker can cause a denial of service when at least one firewall counter is configured.",
  "mitigation": "Upgrade Junos OS Evolved to 23.2R2-S7.7-EVO, 23.4R2-S8.11-EVO, 24.2R2-S5.6-EVO, 24.4R2-S5-EVO, 25.2R2-S2-EVO, 25.4R1-S3-EVO, 26.2R1-S2-EVO, 25.2X100-D35-EVO, or 25.4X300-D40-EVO, as applicable to your release train. Restrict SNMP access to authorized management systems until upgrades are complete.",
  "vendor": "Juniper Networks",
  "product": "Junos OS Evolved",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 0, < 23.2R2-S7.7-EVO",
        ">= 23.4, < 23.4R2-S8.11-EVO",
        ">= 24.2, < 24.2R2-S5.6-EVO",
        ">= 24.4, < 24.4R2-S5-EVO",
        ">= 25.2, < 25.2R2-S2-EVO",
        ">= 25.4, < 25.4R1-S3-EVO",
        ">= 26.2, < 26.2R1-S2-EVO",
        "23.4X100",
        ">= 25.2X100, < 25.2X100-D35-EVO",
        ">= 25.4X300, < 25.4X300-D40-EVO"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "23.2R2-S7.7-EVO",
        "23.4R2-S8.11-EVO",
        "24.2R2-S5.6-EVO",
        "24.4R2-S5-EVO",
        "25.2R2-S2-EVO",
        "25.4R1-S3-EVO",
        "26.2R1-S2-EVO",
        "25.2X100-D35-EVO",
        "25.4X300-D40-EVO"
      ],
      "package_name": "Junos OS Evolved",
      "purl": null
    }
  ],
  "cwes": [
    617
  ],
  "cvss_score": 8.7,
  "cvss_src": "cna_vendor",
  "cvss_vector": "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:A/V:C/RE:M",
  "epss_score": 0.0046,
  "epss_percentile": 0.3859,
  "epss_asof": "2026-10-20",
  "automation": "contextual",
  "check": true,
  "check_confidence_basis": "assessed",
  "exploit": false,
  "pipeline_minutes": 9.207278083333334,
  "t0_at": "2026-10-14T16:47:11.923000+00:00",
  "signals": {
    "check": {
      "at": "2026-10-16T03:58:50.442758+00:00",
      "days": 1.4664180527546296,
      "is_lower_bound": false,
      "measured_at": "2026-10-14T16:47:11.923000+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-10-14T16:47:11.923000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-14T16:47:11.923000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-102023"
    }
  }
}

published 2026-10-15 02:55Z
last change 2026-10-21 17:00Z

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