ETK-2026-3167Zero's internal tracking ID, independent of the CVE number.

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

GHSA-r79h-87qg-7gr3 ↗

no check availablenot proven exploitable
awaiting cvepublic pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).−5h30mkevAttacks confirmed in the real world.
composer:freescout-help-desk/freescout <1.8.249
fixed in 1.8.249
CWE-290 Authentication Bypass by Spoofing
ETK-2026-3167Zero's internal tracking ID, independent of the CVE number., no cve assigned
pkg:composer/freescout-help-desk/freescout
4h 41msince last run
1h 24mAI analysisAnalysis: how long the AI spent reversing this signal.
timeline
0 = cve.org, not yet published
trigger signal −5h30mpublic poc−5h30mwaiting for further signals−4h41m
−4h
−2h
0

description

FreeScout versions before 1.8.249 can misattribute inbound email as a reply from an agent or administrator. An attacker able to send mail to the help desk and obtain a prior reply identifier can cause forged staff correspondence to be recorded and sent through the organization's mail account.

mitigation

Upgrade freescout-help-desk/freescout to version 1.8.249 or later. Until upgraded, restrict inbound help-desk email access where possible and closely review messages attributed to staff.

fixed in 1.8.249

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.
–
agent run time
1h 24m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
not published yet
Δ to public pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).
−5h30m
Δ to kevAttacks confirmed in the real world.
–

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. 2026-10-31 10:26Z
  2. 2026-10-31 10:26Z

this entry in the feed

GET /api/v1/feed/ETK-2026-3167

{
  "etk_id": "ETK-2026-3167",
  "cve_id": null,
  "display_id": "ETK-2026-3167",
  "ghsa_id": "GHSA-r79h-87qg-7gr3",
  "euvd_id": null,
  "status": "published",
  "anchor_state": "awaiting_cve",
  "title": "Email reply spoofing in FreeScout",
  "summary": "FreeScout versions before 1.8.249 can misattribute inbound email as a reply from an agent or administrator. An attacker able to send mail to the help desk and obtain a prior reply identifier can cause forged staff correspondence to be recorded and sent through the organization's mail account.",
  "mitigation": "Upgrade freescout-help-desk/freescout to version 1.8.249 or later. Until upgraded, restrict inbound help-desk email access where possible and closely review messages attributed to staff.",
  "vendor": "composer",
  "product": "composer:freescout-help-desk/freescout",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "<1.8.249"
      ],
      "ecosystem": "composer",
      "fixed_versions": [
        "1.8.249"
      ],
      "package_name": "freescout-help-desk/freescout",
      "purl": "pkg:composer/freescout-help-desk/freescout"
    }
  ],
  "cwes": [
    290
  ],
  "cvss_score": 7.5,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "deterministic",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 83.72392673333333,
  "t0_at": null,
  "signals": {
    "public_poc": {
      "at": "2026-10-31T10:26:48+00:00",
      "days": -0.22928891943287036,
      "is_lower_bound": true,
      "measured_at": "2026-10-31T15:56:58.614572+00:00",
      "url": "https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-r79h-87qg-7gr3"
    },
    "trigger_signal": {
      "at": "2026-10-31T10:26:48+00:00",
      "days": -0.22928891943287036,
      "is_lower_bound": true,
      "measured_at": "2026-10-31T15:56:58.614572+00:00",
      "url": "https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-r79h-87qg-7gr3"
    }
  }
}

published 2026-10-31 10:33Z
last change 2026-10-31 15:49Z

Need the technical details behind an entry?

Every entry here shows what we attempted and when. The technical details, the generated exploit that fired it and the evidence behind the verdict are not public. Tell us about your use case and we’ll get back to you about extended API access.