ETK-2026-3588Zero's internal tracking ID, independent of the CVE number.

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

GHSA-63gp-f575-ch7c ↗

no check availablenot proven exploitable
awaiting cvepublic pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).kevAttacks confirmed in the real world.
go:github.com/gopacket/gopacket <= 1.7.5
fixed in 1.7.6
CWE-125 Out-of-bounds Read
ETK-2026-3588Zero's internal tracking ID, independent of the CVE number., no cve assigned
pkg:golang/github.com/gopacket/gopacket
16h 44msince last run
9mAI analysisAnalysis: how long the AI spent reversing this signal.
timeline
0 = trigger signal
waiting for further signals−2h08mtrigger signal +0h
+3h
+6h
+9h
+12h
+15h

description

gopacket versions before 1.7.6 can mishandle malformed network traffic or capture-file data during packet decoding. An attacker able to supply such input may cause process termination, excessive CPU use, or exposure of residual bytes from a prior packet; impact varies with decoding APIs and options, including pooled buffers and disabled panic recovery.

mitigation

Upgrade github.com/gopacket/gopacket to version 1.7.6. Until then, keep decode recovery enabled, avoid the packet-data pool, and discard packets that report decoding errors before further processing.

fixed in 1.7.6

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
9m
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).
–
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. 2026-11-05 02:16Z

this entry in the feed

GET /api/v1/feed/ETK-2026-3588

{
  "etk_id": "ETK-2026-3588",
  "cve_id": null,
  "display_id": "ETK-2026-3588",
  "ghsa_id": "GHSA-63gp-f575-ch7c",
  "euvd_id": null,
  "status": "published",
  "anchor_state": "awaiting_cve",
  "title": "Malformed-input handling flaws in gopacket packet decoding",
  "summary": "gopacket versions before 1.7.6 can mishandle malformed network traffic or capture-file data during packet decoding. An attacker able to supply such input may cause process termination, excessive CPU use, or exposure of residual bytes from a prior packet; impact varies with decoding APIs and options, including pooled buffers and disabled panic recovery.",
  "mitigation": "Upgrade github.com/gopacket/gopacket to version 1.7.6. Until then, keep decode recovery enabled, avoid the packet-data pool, and discard packets that report decoding errors before further processing.",
  "vendor": "go",
  "product": "go:github.com/gopacket/gopacket",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "<= 1.7.5"
      ],
      "ecosystem": "go",
      "fixed_versions": [
        "1.7.6"
      ],
      "package_name": "github.com/gopacket/gopacket",
      "purl": "pkg:golang/github.com/gopacket/gopacket"
    }
  ],
  "cwes": [
    125
  ],
  "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:N/A:H",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 8.727483933333334,
  "t0_at": null,
  "signals": {
    "trigger_signal": {
      "at": "2026-11-05T02:16:06+00:00",
      "days": -0.6079927375,
      "is_lower_bound": true,
      "measured_at": "2026-11-05T16:51:36.688134+00:00",
      "url": "https://github.com/gopacket/gopacket/security/advisories/GHSA-63gp-f575-ch7c"
    }
  }
}

published 2026-11-05 05:53Z
last change 2026-11-05 16:42Z

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