← back to feed
CVE-2026-13684

CVE-2026-13684

validatedZero produced an exploit or a check.

GHSA-f4qf-hcj6-jwp9 ↗EUVD-2026-82772 ↗

check availableZero validated a working check for it.not proven exploitableZero has a detection check, but hasn't produced a full working exploit yet.
cve.orgpublic pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).kevAttacks confirmed in the real world.+41d
Synology DiskStation Manager (DSM) >= 7.4, < 7.4-90075; >= 7.3.2, < 7.3.2-86009-4; >= 7.2.2, < 7.2.2-72806-9; >= 7.2.1, < 7.2.1-69057-12
fixed in 7.4-90075, 7.3.2-86009-4, 7.2.2-72806-9, 7.2.1-69057-12
ETK-2026-3987Zero's internal tracking ID, independent of the CVE number., permanent identifier
cvss9.8otherCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
+53dTTV
1h 09mAI analysisAnalysis: how long the AI spent reversing this signal.
Check if you are vulnerable
timeline
0 = cve.org publication
cve.org publicationtrigger signal +41dkev+41dcheck available+53dagent stopped
0
+10d
+20d
+30d

description

DSM versions earlier than the listed maintenance releases are affected in the SCGI component. An unauthenticated remote party that can reach SCGI may access or modify files and disrupt service availability.

mitigation

Update DSM to 7.4-90075, 7.3.2-86009-4, 7.2.2-72806-9, or 7.2.1-69057-12, as appropriate for the installed release branch. Restrict remote access to the SCGI interface until updates are applied.

fixed in 7.4-90075, 7.3.2-86009-4, 7.2.2-72806-9, 7.2.1-69057-12

check
available
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.
deterministic
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.
0.60%48th percentile
agent run time
1h 09m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-09-18 08:19Z
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.
+41d

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.

  1. 2026-09-18 08:19Z
  2. 2026-10-29
    vulncheck_kev: trigger signal, started the run
    https://vulncheck.com/cve/CVE-2026-13684
  3. 2026-10-29 00:00Z

this entry in the feed

GET /api/v1/feed/CVE-2026-13684

{
  "etk_id": "ETK-2026-3987",
  "cve_id": "CVE-2026-13684",
  "display_id": "CVE-2026-13684",
  "ghsa_id": "GHSA-f4qf-hcj6-jwp9",
  "euvd_id": "EUVD-2026-82772",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Output-encoding flaw in DSM SCGI",
  "summary": "DSM versions earlier than the listed maintenance releases are affected in the SCGI component. An unauthenticated remote party that can reach SCGI may access or modify files and disrupt service availability.",
  "mitigation": "Update DSM to 7.4-90075, 7.3.2-86009-4, 7.2.2-72806-9, or 7.2.1-69057-12, as appropriate for the installed release branch. Restrict remote access to the SCGI interface until updates are applied.",
  "vendor": "Synology",
  "product": "DiskStation Manager (DSM)",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 7.4, < 7.4-90075",
        ">= 7.3.2, < 7.3.2-86009-4",
        ">= 7.2.2, < 7.2.2-72806-9",
        ">= 7.2.1, < 7.2.1-69057-12"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "7.4-90075",
        "7.3.2-86009-4",
        "7.2.2-72806-9",
        "7.2.1-69057-12"
      ],
      "package_name": "DiskStation Manager (DSM)",
      "purl": null
    }
  ],
  "cwes": null,
  "cvss_score": 9.8,
  "cvss_src": "other",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "epss_score": 0.006,
  "epss_percentile": 0.4897,
  "epss_asof": "2026-11-09",
  "automation": "deterministic",
  "check": true,
  "check_confidence_basis": "differential",
  "exploit": false,
  "pipeline_minutes": 69.16337576666666,
  "t0_at": "2026-09-18T08:19:14.016000+00:00",
  "signals": {
    "check": {
      "at": "2026-11-09T20:22:01.731148+00:00",
      "days": 52.5019411475463,
      "is_lower_bound": false,
      "measured_at": "2026-09-18T08:19:14.016000+00:00",
      "url": null
    },
    "kev": {
      "at": "2026-10-29T00:00:00+00:00",
      "days": 41,
      "is_lower_bound": false,
      "measured_at": "2026-09-18T08:19:14.016000+00:00",
      "precision": "day",
      "url": "https://vulncheck.com/cve/CVE-2026-13684"
    },
    "trigger_signal": {
      "at": "2026-10-29T00:00:00+00:00",
      "days": 40.65331,
      "is_lower_bound": false,
      "measured_at": "2026-09-18T08:19:14.016000+00:00",
      "url": "https://vulncheck.com/cve/CVE-2026-13684"
    }
  }
}

published 2026-11-09 20:07Z
last change 2026-11-11 06:19Z

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.

Protected by reCAPTCHA; the Google Privacy Policy and Terms of Service apply.