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CVE-2026-88772

CVE-2026-88772

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

EUVD-2026-87959 ↗

no check availablenot proven exploitable
cve.orgpublic pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).+2h06mkevAttacks confirmed in the real world.+5h21m
Citrix NetScaler < 14.1-73.37; < 13.1-64.23; >= 0, < 14.1-73.37 FIPS; >= 0, < 13.1.37.279 FIPS and NDcPP
fixed in 14.1-73.37, 13.1-64.23, 14.1-73.37 FIPS, 13.1.37.279 FIPS and NDcPP
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
ETK-2026-6, permanent identifier
cvss8.1nvdCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
19d 02h 30msince last run
15mAI analysisAnalysis: how long the AI spent reversing this signal.
timeline
0 = trigger signal
trigger signal +0hcve.org publication+16h10mpublic poc+18h16mkev+21h31mwaiting for further signals+121h33m
0
+6h
+12h

description

NetScaler ADC releases older than the listed fixed builds, and NetScaler Gateway releases older than 14.1-73.37 or 13.1-64.23, are affected. An attacker may be able to execute code on the appliance or disrupt its availability; the available evidence does not identify the prerequisite for exploitation.

mitigation

Upgrade NetScaler ADC to 14.1-73.37, 13.1-64.23, 14.1-73.37 FIPS, or 13.1.37.279 FIPS and NDcPP, as appropriate for the deployment. Upgrade NetScaler Gateway to 14.1-73.37 or 13.1-64.23.

fixed in 14.1-73.37, 13.1-64.23, 14.1-73.37 FIPS, 13.1.37.279 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.
–
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.
1.3%70th percentile
agent run time
15m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-09-27 16:09Z
Δ to public pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).
+2h06m
Δ to kevAttacks confirmed in the real world.
+5h21m

outcome

No artifact: an exploit or check was attempted but could not be produced at this moment.

source signals

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

  1. 2026-09-27
  2. 2026-09-27 00:00Z
  3. 2026-09-27 00:00Z
  4. 2026-09-27 00:00Z
  5. 2026-09-27 16:09Z
  6. 2026-09-29 20:11Z
  7. 2026-10-01 04:35Z
    Citrix NetScaler Post-Exploitation Payload Creates Superuser, Maps Web Shell to CSS-Like URLs
    thehackernews · https://thehackernews.com/2026/10/citrix-netscaler-post-exploitation.html
  8. 2026-10-02 00:27Z
    Attackers Exploit NetScaler Flaw for Root Access, Deploy WHIPSHOT and SLAPSHOT
    thehackernews · https://thehackernews.com/2026/09/attackers-exploit-netscaler-flaw-for.html
  9. 2026-10-02 00:27Z
    Citrix NetScaler CVE-2026-88772 Exploit Details Show Pre-Auth Path to Shellcode Execution
    thehackernews · https://thehackernews.com/2026/09/citrix-netscaler-cve-2026-88772-exploit.html
  10. 2026-10-02 00:27Z
    CISA Says Attackers Are Exploiting Two Critical Citrix NetScaler Flaws Globally
    thehackernews · https://thehackernews.com/2026/09/cisa-says-attackers-are-exploiting-two.html
  11. 2026-10-02 00:27Z
    Warning: Two Unpatched Citrix NetScaler RCE Zero-Days Under Active Exploitation
    thehackernews · https://thehackernews.com/2026/09/warning-two-unpatched-citrix-netscaler.html
  12. 2026-10-02 05:49Z
    Critical FortiMail Zero-Day Flaw Exploited in Attacks Allows Unauthenticated Arbitrary File Writes
    thehackernews · https://thehackernews.com/2026/10/critical-fortimail-zero-day-flaw.html
  13. 2026-10-05 06:40Z
    New NetScaler Zero-Day Exploited in Targeted Attacks Can Knock SAML Deployments Offline
    thehackernews · https://thehackernews.com/2026/10/new-netscaler-zero-day-exploited-in.html

this entry in the feed

GET /api/v1/feed/CVE-2026-88772

{
  "etk_id": "ETK-2026-6",
  "cve_id": "CVE-2026-88772",
  "display_id": "CVE-2026-88772",
  "ghsa_id": null,
  "euvd_id": "EUVD-2026-87959",
  "status": "published",
  "anchor_state": "anchored",
  "title": "NetScaler ADC and Gateway code execution vulnerability",
  "summary": "NetScaler ADC releases older than the listed fixed builds, and NetScaler Gateway releases older than 14.1-73.37 or 13.1-64.23, are affected. An attacker may be able to execute code on the appliance or disrupt its availability; the available evidence does not identify the prerequisite for exploitation.",
  "mitigation": "Upgrade NetScaler ADC to 14.1-73.37, 13.1-64.23, 14.1-73.37 FIPS, or 13.1.37.279 FIPS and NDcPP, as appropriate for the deployment. Upgrade NetScaler Gateway to 14.1-73.37 or 13.1-64.23.",
  "vendor": "Citrix",
  "product": "NetScaler",
  "affected": [
    {
      "affected_notes": [
        ">= 0, < 14.1-73.37 FIPS",
        ">= 0, < 13.1.37.279 FIPS and NDcPP"
      ],
      "affected_ranges": [
        ">= 0, < 14.1-73.37",
        ">= 0, < 13.1-64.23"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "14.1-73.37",
        "13.1-64.23",
        "14.1-73.37 FIPS",
        "13.1.37.279 FIPS and NDcPP"
      ],
      "package_name": "ADC",
      "purl": null
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 0, < 14.1-73.37",
        ">= 0, < 13.1-64.23"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "14.1-73.37",
        "13.1-64.23"
      ],
      "package_name": "Gateway",
      "purl": null
    }
  ],
  "cwes": [
    119
  ],
  "cvss_score": 8.1,
  "cvss_src": "nvd",
  "cvss_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "epss_score": 0.013,
  "epss_percentile": 0.7006,
  "epss_asof": "2026-10-20",
  "automation": "deterministic",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 15.338924083333334,
  "t0_at": "2026-09-27T16:09:56.033000+00:00",
  "signals": {
    "kev": {
      "at": "2026-09-27T21:30:35.552100+00:00",
      "days": 0.22267961921296298,
      "is_lower_bound": false,
      "measured_at": "2026-09-27T16:09:56.033000+00:00",
      "precision": "exact",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2026-88772"
    },
    "public_poc": {
      "at": "2026-09-27T18:15:55+00:00",
      "days": 0.08748804398148148,
      "is_lower_bound": false,
      "measured_at": "2026-09-27T16:09:56.033000+00:00",
      "url": "https://github.com/watchtowrlabs/watchTowr-vs-Citrix-Netscaler-CVE-2026-88772"
    },
    "trigger_signal": {
      "at": "2026-09-27T00:00:00+00:00",
      "days": -0.6735651967592593,
      "is_lower_bound": false,
      "measured_at": "2026-09-27T16:09:56.033000+00:00",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2026-88772"
    }
  }
}

published 2026-09-29 20:03Z
last change 2026-10-21 03:57Z

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