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CVE-2026-120862

CVE-2026-120862

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

EUVD-2026-124909 ↗

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.
Citrix NetScaler ADC < 14.1-73.57; < 13.1-64.39; >= 0, < 14.1-73.58 FIPS; >= 0, < 13.1-37.293 FIPs and NDcPP
fixed in 14.1-73.57, 13.1-64.39, 14.1-73.58 FIPS, 13.1-37.293 FIPs and NDcPP
ETK-2026-4362Zero'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:L/SI:L/SA:L
1h 05msince last run
30mAI analysisAnalysis: how long the AI spent reversing this signal.
timeline
0 = trigger signal
trigger signal (cve.org) +0hwaiting for further signals+0h44m
0
+2h
+4h
+6h
+8h
+10h
+12h

description

NetScaler ADC and NetScaler Gateway are affected by a memory overflow in SIP ALG (LSN) and DNS answer-section logging paths. An attacker who can cause traffic to be processed through an affected path may trigger erroneous or unpredictable behavior, including denial of service. The available evidence does not specify authentication requirements or other attacker preconditions.

mitigation

Upgrade NetScaler ADC to 14.1-73.57 or 13.1-64.39; use 14.1-73.58 FIPS or 13.1-37.293 FIPs and NDcPP where applicable. Upgrade NetScaler Gateway to 14.1-73.57 or 13.1-64.39.

fixed in 14.1-73.57, 13.1-64.39, 14.1-73.58 FIPS, 13.1-37.293 FIPs and NDcPP

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.
–
agent run time
30m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-11-13 08:02Z
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, not validated: no deterministic check could cover this one, and no technique passed our review.

source signals

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

  1. 2026-11-13 08:02Z
    cve_org: trigger signal, started the run
    https://www.cve.org/CVERecord?id=CVE-2026-120862

this entry in the feed

GET /api/v1/feed/CVE-2026-120862

{
  "etk_id": "ETK-2026-4362",
  "cve_id": "CVE-2026-120862",
  "display_id": "CVE-2026-120862",
  "ghsa_id": null,
  "euvd_id": "EUVD-2026-124909",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Memory overflow in NetScaler SIP ALG and DNS logging",
  "summary": "NetScaler ADC and NetScaler Gateway are affected by a memory overflow in SIP ALG (LSN) and DNS answer-section logging paths. An attacker who can cause traffic to be processed through an affected path may trigger erroneous or unpredictable behavior, including denial of service. The available evidence does not specify authentication requirements or other attacker preconditions.",
  "mitigation": "Upgrade NetScaler ADC to 14.1-73.57 or 13.1-64.39; use 14.1-73.58 FIPS or 13.1-37.293 FIPs and NDcPP where applicable. Upgrade NetScaler Gateway to 14.1-73.57 or 13.1-64.39.",
  "vendor": "Citrix",
  "product": "NetScaler ADC",
  "affected": [
    {
      "affected_notes": [
        ">= 0, < 14.1-73.58 FIPS",
        ">= 0, < 13.1-37.293 FIPs and NDcPP"
      ],
      "affected_ranges": [
        ">= 0, < 14.1-73.57",
        ">= 0, < 13.1-64.39"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "14.1-73.57",
        "13.1-64.39",
        "14.1-73.58 FIPS",
        "13.1-37.293 FIPs and NDcPP"
      ],
      "package_name": "NetScaler ADC",
      "purl": null
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 0, < 14.1-73.57",
        ">= 0, < 13.1-64.39"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "14.1-73.57",
        "13.1-64.39"
      ],
      "package_name": "NetScaler Gateway",
      "purl": null
    }
  ],
  "cwes": null,
  "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:L/SI:L/SA:L",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 30.280040983333333,
  "t0_at": "2026-11-13T08:02:05.170000+00:00",
  "signals": {
    "trigger_signal": {
      "at": "2026-11-13T08:02:05.170000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-11-13T08:02:05.170000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-120862"
    }
  }
}

published 2026-11-13 08:15Z
last change 2026-11-13 09:23Z

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