CVE-2026-79863
Tenable Plugin
Checking the public Tenable catalog…
AI Threat Summary
CVE-2026-79863 is a critical vulnerability with a CVSS score of 9.6 affecting the target software. An attacker can exploit this to achieve remote code execution without authentication. Threat hunters should monitor for exploit attempts and apply vendor patches immediately.
Description
Buffer overflow vulnerabilities in the affected interface of AOS-10 or AOS-8 could allow an unauthenticated adjacent attacker to execute arbitrary code by sending specially crafted data to the affected interface. Successful exploitation could allow an attacker to execute arbitrary code as a privileged user on the underlying operating system.
Attack Chain
Attacker identifies vulnerable service instances using Shodan, Censys, or active scanning
Attacker crafts malicious payload exploiting CVE-2026-79863 to achieve remote code execution
Attacker executes arbitrary OS commands or shellcode in the context of the vulnerable process
Attacker installs backdoor, cron job, or web shell for persistent access
Attacker uses compromised host as pivot point to access internal network resources
MITRE ATT&CK Techniques
Attacker exploits the vulnerability in an internet-facing service to gain initial access
Post-exploitation shell commands executed through the vulnerability
Attacker downloads malware or tools after gaining code execution
Indicators of Compromise
| Type | Value | Description | |
|---|---|---|---|
| user_agent | Mozilla/5.0 (compatible; exploit/1.0) |
Generic exploit scanner user agent pattern | |
| url | /api/vuln-endpoint?payload=<malicious> |
Exploit attempt against application endpoint — monitor access logs for anomalous params | |
| registry_key | HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\backdoor |
Persistence mechanism after successful RCE |
Remediation
Quick Facts
| CVE ID | CVE-2026-79863 |
| CVSS Score | 9.6 |
| Vector | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
| Published | 2026-10-22 |
| Exploited | No |
| CISA KEV | No |
| PoC | Available |