CVE-2026-121951

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

GHSA-4qq4-qwxq-49m8 ↗EUVD-2026-116951 ↗

no check availablenot proven exploitable
cve.orgpublic pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).−15dkevAttacks confirmed in the real world.
FreeRDP >= 3.0.0, <= 3.32.1
fixed in 3.32.2
CWE-617 Reachable Assertion
ETK-2026-3516Zero's internal tracking ID, independent of the CVE number., permanent identifier
3h 50msince last run
13mAI analysisAnalysis: how long the AI spent reversing this signal.
timeline
0 = cve.org publication
public poc−15dtrigger signal (cve.org) +0dwaiting for further signals+0.0d
−10d
−5d

description

FreeRDP server deployments running version 3.0.0 through versions before 3.32.2 are affected by an input-parsing flaw. A remote client with an active RDP session can cause an assertion-enabled server process to terminate, disrupting service.

mitigation

Upgrade FreeRDP to version 3.32.2 or later. Until upgrades are complete, limit RDP access to trusted clients and networks.

fixed in 3.32.2

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
13m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-11-04 15:33Z
Δ to public pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).
−15d
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. 2026-10-20 17:13Z
  2. 2026-11-04 15:33Z
    cve_org: trigger signal, started the run

this entry in the feed

GET /api/v1/feed/CVE-2026-121951

{
  "etk_id": "ETK-2026-3516",
  "cve_id": "CVE-2026-121951",
  "display_id": "CVE-2026-121951",
  "ghsa_id": "GHSA-4qq4-qwxq-49m8",
  "euvd_id": "EUVD-2026-116951",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Remote denial of service in FreeRDP server input parsing",
  "summary": "FreeRDP server deployments running version 3.0.0 through versions before 3.32.2 are affected by an input-parsing flaw. A remote client with an active RDP session can cause an assertion-enabled server process to terminate, disrupting service.",
  "mitigation": "Upgrade FreeRDP to version 3.32.2 or later. Until upgrades are complete, limit RDP access to trusted clients and networks.",
  "vendor": "FreeRDP",
  "product": "FreeRDP",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 3.0.0, <= 3.32.1"
      ],
      "ecosystem": "c/c++",
      "fixed_versions": [
        "3.32.2"
      ],
      "package_name": "FreeRDP",
      "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:N",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 13.247470516666667,
  "t0_at": "2026-11-04T15:33:17.349000+00:00",
  "signals": {
    "public_poc": {
      "at": "2026-10-20T17:13:57+00:00",
      "days": -14.930096631944444,
      "is_lower_bound": false,
      "measured_at": "2026-11-04T15:33:17.349000+00:00",
      "url": "https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-4qq4-qwxq-49m8"
    },
    "trigger_signal": {
      "at": "2026-11-04T15:33:17.349000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-11-04T15:33:17.349000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-121951"
    }
  }
}

published 2026-11-04 15:57Z
last change 2026-11-04 18:35Z

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