CVE-2026-121615

waiting for further signals

GHSA-4xhr-pc2w-8qx5 ↗EUVD-2026-116686 ↗

no check availablenot proven exploitable

cve.orgpublic poc−24dkev

Linksys E5600 1.1.0.26

CWE-287 Improper Authentication

ETK-2026-3440, permanent identifier

cvss10.0cna vendorCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P

5h 19msince last run

10mAI analysis

timeline

0 = cve.org publication

public poc−24dtrigger signal (cve.org) +0dwaiting for further signals+0.0d

−20d

−15d

−10d

−5d

description

Linksys E5600 devices running firmware 1.1.0.26 are affected by an authentication weakness in the login handler. A remote attacker may be able to gain access without proper authentication when they can reach the affected interface.

mitigation

Remove affected routers from internet-reachable networks and restrict administrative access to trusted networks. Replace unsupported E5600 devices, as no corrected version is recorded.

check

exploit

automation

–

auth required

EPSS

–

agent run time

10m

cve.org record, t = 0

2026-11-04 02:15Z

Δ to public poc

−24d

Δ to kev

–

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.

2026-11-04 02:15Z
cve_org: trigger signal, started the run
https://www.cve.org/CVERecord?id=CVE-2026-121615
2026-11-04 03:04Z
Zimo-666/E5600-cves
github · https://github.com/Zimo-666/E5600-cves

this entry in the feed

GET /api/v1/feed/CVE-2026-121615

{
  "etk_id": "ETK-2026-3440",
  "cve_id": "CVE-2026-121615",
  "display_id": "CVE-2026-121615",
  "ghsa_id": "GHSA-4xhr-pc2w-8qx5",
  "euvd_id": "EUVD-2026-116686",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Improper authentication in Linksys E5600 login handler",
  "summary": "Linksys E5600 devices running firmware 1.1.0.26 are affected by an authentication weakness in the login handler. A remote attacker may be able to gain access without proper authentication when they can reach the affected interface.",
  "mitigation": "Remove affected routers from internet-reachable networks and restrict administrative access to trusted networks. Replace unsupported E5600 devices, as no corrected version is recorded.",
  "vendor": "Linksys",
  "product": "E5600",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "1.1.0.26"
      ],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "E5600",
      "purl": null
    }
  ],
  "cwes": [
    287
  ],
  "cvss_score": 10,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "deterministic",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 9.976534216666666,
  "t0_at": "2026-11-04T02:15:20.055000+00:00",
  "signals": {
    "public_poc": {
      "at": "2026-10-10T14:39:56+00:00",
      "days": -24.48291730324074,
      "is_lower_bound": false,
      "measured_at": "2026-11-04T02:15:20.055000+00:00",
      "url": "https://github.com/Zimo-666/E5600-cves"
    },
    "trigger_signal": {
      "at": "2026-11-04T02:15:20.055000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-11-04T02:15:20.055000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-121615"
    }
  }
}

published 2026-11-04 02:49Z
last change 2026-11-04 04:08Z

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