CVE-2026-89035

validated

GHSA-j7mx-6943-qw55 ↗

check availablenot proven exploitable

cve.orgpublic pockev

MikroTik RouterOS <= 7.23.6; >= 7.24.0, <= 7.24.5

CWE-613 Insufficient Session Expiration

ETK-2026-2343, permanent identifier

cvss9.1cna vendorCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

+1h22mTTV

31mAI analysis

Check if you are vulnerable

timeline

0 = trigger signal

trigger signal (cve.org) +0mcheck available+82magent stopped

+30min

+60min

+90min

description

MikroTik RouterOS through 7.24.5 is affected by a WebFig session-token replay issue. An attacker who has captured a valid session token can reuse it on a different connection to bypass authentication and obtain administrative access.

mitigation

Clear the RouterOS token store to revoke potentially captured tokens, and limit or disable WebFig access from untrusted networks. Restrict management access to trusted administrators until a vendor-fixed release is available.

check

available

exploit

automation

deterministic

auth required

EPSS

–

agent run time

31m

cve.org record, t = 0

2026-10-21 17:16Z

Δ to public poc

–

Δ to kev

–

outcome

Check only, differential: the check fires on the vulnerable build and is silent on the patched one.

source signals

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

2026-10-21 17:16Z
cve_org: trigger signal, started the run
https://www.cve.org/CVERecord?id=CVE-2026-89035

this entry in the feed

GET /api/v1/feed/CVE-2026-89035

{
  "etk_id": "ETK-2026-2343",
  "cve_id": "CVE-2026-89035",
  "display_id": "CVE-2026-89035",
  "ghsa_id": "GHSA-j7mx-6943-qw55",
  "euvd_id": null,
  "status": "published",
  "anchor_state": "anchored",
  "title": "WebFig session token replay in MikroTik RouterOS",
  "summary": "MikroTik RouterOS through 7.24.5 is affected by a WebFig session-token replay issue. An attacker who has captured a valid session token can reuse it on a different connection to bypass authentication and obtain administrative access.",
  "mitigation": "Clear the RouterOS token store to revoke potentially captured tokens, and limit or disable WebFig access from untrusted networks. Restrict management access to trusted administrators until a vendor-fixed release is available.",
  "vendor": "MikroTik",
  "product": "RouterOS",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 0, <= 7.23.6",
        ">= 7.24.0, <= 7.24.5"
      ],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "RouterOS",
      "purl": null
    }
  ],
  "cwes": [
    613
  ],
  "cvss_score": 9.1,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "deterministic",
  "check": true,
  "check_confidence_basis": "differential",
  "exploit": false,
  "pipeline_minutes": 30.687174666666667,
  "t0_at": "2026-10-21T17:16:40.843000+00:00",
  "signals": {
    "check": {
      "at": "2026-10-21T18:38:50.929589+00:00",
      "days": 0.05706118737268519,
      "is_lower_bound": false,
      "measured_at": "2026-10-21T17:16:40.843000+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-10-21T17:16:40.843000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-21T17:16:40.843000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-89035"
    }
  }
}

published 2026-10-21 18:08Z
last change 2026-10-21 19:22Z

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