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CVE-2026-101954

CVE-2026-101954

waiting for further signalsZero needs more public information before it can validate it.

GHSA-34c5-5qc5-99pf ↗EUVD-2026-101494 ↗

no check availablenot proven exploitable
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 >= 25.2, < 25.2R2-S2; >= 25.4, < 25.4R1-S3; >= 26.2, < 26.2R1-S2; >= 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 25.2R2-S2, 25.4R1-S3, 26.2R1-S2, 25.2R2-S2-EVO, 25.4R1-S3-EVO, 26.2R1-S2-EVO, 25.2X100-D35-EVO, 25.4X300-D40-EVO
CWE-287 Improper Authentication
ETK-2026-1634Zero's internal tracking ID, independent of the CVE number., permanent identifier
cvss9.3cna vendorCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:L
4d 14h 48msince last run
11mAI analysisAnalysis: how long the AI spent reversing this signal.
timeline
0 = trigger signal
trigger signal (cve.org) +0hwaiting for further signals+60h36m
0
+2h
+4h
+6h
+8h
+10h

description

Junos OS and Junos OS Evolved J-Web management interface and NETCONF session handling are affected by an improper-authentication flaw. An unauthenticated network attacker may gain root-level configuration access and take over an affected device when J-Web HTTP or HTTPS is reachable and web management is enabled.

mitigation

Upgrade Junos OS to 25.2R2-S2, 25.4R1-S3, or 26.2R1-S2, and upgrade Junos OS Evolved to 25.2R2-S2-EVO, 25.4R1-S3-EVO, 26.2R1-S2-EVO, 25.2X100-D35-EVO, or 25.4X300-D40-EVO. Until upgraded, disable web management or restrict J-Web HTTP/HTTPS access to trusted administrative networks.

fixed in 25.2R2-S2, 25.4R1-S3, 26.2R1-S2, 25.2R2-S2-EVO, 25.4R1-S3-EVO, 26.2R1-S2-EVO, 25.2X100-D35-EVO, 25.4X300-D40-EVO

check
no
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.
0.49%41st percentile
agent run time
11m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-10-14 17:22Z
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: an exploit technique exists, 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 17:22Z
    cve_org: trigger signal, started the run
    https://www.cve.org/CVERecord?id=CVE-2026-101954

this entry in the feed

GET /api/v1/feed/CVE-2026-101954

{
  "etk_id": "ETK-2026-1634",
  "cve_id": "CVE-2026-101954",
  "display_id": "CVE-2026-101954",
  "ghsa_id": "GHSA-34c5-5qc5-99pf",
  "euvd_id": "EUVD-2026-101494",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Improper authentication in Junos J-Web management",
  "summary": "Junos OS and Junos OS Evolved J-Web management interface and NETCONF session handling are affected by an improper-authentication flaw. An unauthenticated network attacker may gain root-level configuration access and take over an affected device when J-Web HTTP or HTTPS is reachable and web management is enabled.",
  "mitigation": "Upgrade Junos OS to 25.2R2-S2, 25.4R1-S3, or 26.2R1-S2, and upgrade Junos OS Evolved to 25.2R2-S2-EVO, 25.4R1-S3-EVO, 26.2R1-S2-EVO, 25.2X100-D35-EVO, or 25.4X300-D40-EVO. Until upgraded, disable web management or restrict J-Web HTTP/HTTPS access to trusted administrative networks.",
  "vendor": "Juniper Networks",
  "product": "Junos OS",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 25.2, < 25.2R2-S2",
        ">= 25.4, < 25.4R1-S3",
        ">= 26.2, < 26.2R1-S2"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "25.2R2-S2",
        "25.4R1-S3",
        "26.2R1-S2"
      ],
      "package_name": "Junos OS",
      "purl": null
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 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": [
        "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": [
    287
  ],
  "cvss_score": 9.3,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:L",
  "epss_score": 0.0049,
  "epss_percentile": 0.41,
  "epss_asof": "2026-10-20",
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 10.96352935,
  "t0_at": "2026-10-14T17:22:07.086000+00:00",
  "signals": {
    "trigger_signal": {
      "at": "2026-10-14T17:22:07.086000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-14T17:22:07.086000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-101954"
    }
  }
}

published 2026-10-15 03:25Z
last change 2026-10-21 18:49Z

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