Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HCVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.
Summary
CVE-2016-6367 is a high-severity Command Injection (CWE-77) vulnerability in Cisco Adaptive Security Appliance Software. Its CVSS base score is 7.8 (High).
Operationally, ranked in the top 2% of CVEs by exploit likelihood; CISA has added it to the Known Exploited Vulnerabilities catalog; a public proof-of-concept is referenced.
Deeper analysis AI-assisted summary
Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.
CVE-2016-6367 is a command injection vulnerability (CWE-77) in Cisco Adaptive Security Appliance (ASA) Software versions prior to 8.4(1) running on ASA 5500, ASA 5500-X, PIX, and FWSM devices. The flaw, tracked as Bug ID CSCtu74257 and also known as EPICBANANA, permits local users to escalate privileges by submitting specially crafted invalid CLI commands.
A local attacker with low-privileged CLI access can exploit the issue without user interaction to obtain elevated privileges, resulting in full control over confidentiality, integrity, and availability of the affected device. The CVSS 3.1 base score of 7.8 reflects the high impact combined with local attack vector and low attack complexity.
Cisco's security advisory cisco-sa-20160817-asa-cli and related notices direct administrators to upgrade to fixed releases and reference additional context from the Shadow Brokers disclosures. The vulnerability was publicly associated with the 2016 Shadow Brokers leak of NSA-linked exploit tools.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2016-7290
Vulnerability Data
Cisco Adaptive Security Appliance (ASA) Software before 8.4(1) on ASA 5500, ASA 5500-X, PIX, and FWSM devices allows local users to gain privileges via invalid CLI commands, aka Bug ID CSCtu74257 or EPICBANANA.
- CWE(s)
- KEV Date Added
- 24 May 2022
Related Threats
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.
A.8.25 mandates secure SDLC practices including secure coding guidelines, security requirements, checkpoints, testing (scans/penetration), and developer training that reduce command injection defects, but leaves a minority slice (e.g. incomplete implementation of those practices, outsourced development without full assurance, or post-SDLC changes) where the weakness can still arise and be exploitable.
Application security requirements explicitly call for controls against injection flaws including command injection.
A.8.27 mandates security-by-design principles (e.g. distrust external input, secure session control, data validation/sanitization, least privilege) and design reviews that can stop command injection from being introduced, but this is only a minority slice of CWE-77 because the weakness can still arise in code that bypasses those principles, in non-reviewed components, or in runtime injection vectors the architecture review does not reach.
Secure coding standards require proper escaping and parameterization of commands, directly eliminating CWE-77.
Security testing in development catches command-injection vulnerabilities before release.
Hardening callouts derived
DISA STIG baselines are authored against specific weaknesses. Where this CVE cites a broad weakness class, the mapping is not asserted at that abstraction (owner ruling, 2026-09-25: grade only at Base and below), so no rule is shown here rather than a rule shown against the wrong grain.
- No fine-grained STIG row for CWE-77, a class-level weakness, and none of its children carries one either.