Cisco Adaptive Security Appliance (ASA) SNMP Buffer Overflow Vulnerability
Cisco / Adaptive Security Appliance (ASA)
A buffer overflow vulnerability in the Simple Network Management Protocol (SNMP) code of Cisco ASA software could allow an attacker to cause a reload of the affected system or to remotely execute code.
- CVE identifier
- CVE-2016-6366
- Added to KEV
- May 24, 2022
- CISA catalog dueDate
- Jun 14, 2022
The dates above are catalog fields. The addition date does not establish when the vulnerability was discovered or first exploited. Confirm which requirements apply to your organisation separately.
Publisher's required action
Apply updates per vendor instructions.
This wording is attributed to the CISA snapshot. Verify current vendor guidance, affected versions and your deployment before applying changes.
Keep the signals separate.
- Ransomware use, as reported by CISA
- Unknown
- CVSS severity
- Not supplied by KEV
- EPSS probability
- Not available
No EPSS value was supplied for this record in the current snapshot. Unknown values are not treated as zero.
“Unknown” ransomware use is an unknown source field, not proof that ransomware activity has not occurred.
Source notes
https://nvd.nist.gov/vuln/detail/CVE-2016-6366
Source & freshness
Source updated: Nov 6, 2026, 7:44 PM UTC
Successfully checked: Nov 7, 2026, 6:22 PM UTC
This snapshot is older than 36 hours. Check current publisher guidance.
Automated source record, not an editorial advisory or an independent discovery. No affected or fixed version is inferred, and no organisation-specific risk rating is generated.