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OBS-2026-000154: CVE-2026-76461

1. Observe What changed? →
2. Understand Why does it matter? →
3. Track How does risk evolve? →
4. Predict What happens next? →
5. Decide What to do? →
6. Verify What happened? →
7. Remember Persistent memory
IMMUTABLE CANONICAL OBSERVATION

OBS-2026-000154

Target Entity: CVE-2026-76461 — Cisco Secure Email Gateway AsyncOS Email Parsing SQL Injection Remote Code Execution

MODE: RETROSPECTIVE

Methodology: HTS-3.1
Observed UTC:
2026-09-14T00:00:00.000Z
Event Date:
2026-09-14
Epistemic State:
● KNOWN
Cryptographic Digest:
sha256-cf8aab20a82c57a…

This canonical observation confirms the following factual event on the threat surface:

Hermes Threat Score (HTS)
97 / 100
EXTREME
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-Day Exploitation)
94.2%
Percentile: 99.1th
Weaponization & CISA KEV

🚨 Listed in CISA KEV

Exploit Maturity: weaponized

Hermes rejects false certainty and explicitly exposes its decomposed confidence vector:

Evidence Integrity99%
Model Stability98%
Data Completeness95%
Actionable Decisiveness96%

Observation OBS-2026-000154 is strictly anchored to verified records from the following primary entities:

  • Cisco Security Advisory cisco-sa-esa-inj-2bLVGmhX
  • CISA Known Exploited Vulnerabilities Catalog (BOD 26-04)
  • NVD CVE-2026-76461 Record

Primary Source → OBS-2026-000154 → CVE-2026-76461 → Risk Trajectory → Action Directive


4. Target Entity & Correlated Intelligence

Section titled “4. Target Entity & Correlated Intelligence”

5. Observation Sequence & Chain of Custody

Section titled “5. Observation Sequence & Chain of Custody”

Chronological lineage for entity CVE-2026-76461:

  • Preceding Observation: None (Initial Baseline)
  • Succeeding Observation: None (Latest Observation)
Observation IDDateModeScoreObserved Fact
👉 OBS-2026-0001542026-09-14RETROSPECTIVE97Initial baseline observation created upon public disclosure and ingestion.

6. Reproducibility & Cryptographic Verification

Section titled “6. Reproducibility & Cryptographic Verification”

(Section 77 Mandate: “Observations must be reproducible”)

Fetch and verify this observation record directly from the machine-readable API:

Terminal window
# 1. Fetch canonical observation record
curl -sSL https://hermes-codex.vercel.app/api/observations/OBS-2026-000154.json
# 2. Verify cryptographic SHA-256 integrity
curl -sSL https://hermes-codex.vercel.app/api/observations/OBS-2026-000154.json | sha256sum
{
"type": "observed-data",
"spec_version": "2.1",
"id": "observed-data--06bdc2cd-7666-a1ad-2587-515527e1045e",
"created_by_ref": "identity--hermes-codex-threat-observatory",
"created": "2026-09-14T00:00:00.000Z",
"modified": "2026-09-14T00:00:00.000Z",
"first_observed": "2026-09-14T00:00:00.000Z",
"last_observed": "2026-09-14T00:00:00.000Z",
"number_observed": 1,
"external_references": [
{
"source_name": "hermes-codex",
"external_id": "OBS-2026-000154",
"url": "https://hermes-codex.vercel.app/observations/obs-2026-000154/"
}
],
"object_marking_refs": [
"marking-definition--tlp-clear"
],
"custom_properties": {
"x_hermes_threat_score": 97,
"x_hermes_severity": "EXTREME",
"x_hermes_epistemic_state": "KNOWN",
"x_hermes_methodology": "HTS-3.1",
"x_hermes_integrity_hash": "sha256-cf8aab20a82c57ad6ff80a741300c5f31f5226306a4d4d52bcbae6624bfc057d"
}
}