CVE-2016-6432
Summary
| CVE | CVE-2016-6432 |
|---|---|
| State | PUBLISHED |
| Assigner | cisco |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2016-10-27 21:59:07 UTC |
| Updated | 2026-05-06 22:30:45 UTC |
| Description | A vulnerability in the Identity Firewall feature of Cisco ASA Software before 9.6(2.1) could allow an unauthenticated, remote attacker to cause a reload of the affected system or to remotely execute code. The vulnerability is due to a buffer overflow in the affected code area. An attacker could exploit this vulnerability by sending a crafted NetBIOS packet in response to a NetBIOS probe sent by the ASA software. An exploit could allow the attacker to execute arbitrary code and obtain full control of the system or cause a reload of the affected system. Note: Only traffic directed to the affected system can be used to exploit this vulnerability. This vulnerability affects systems configured in routed and transparent firewall mode and in single or multiple context mode. This vulnerability can be triggered by IPv4 traffic. |
Risk And Classification
Primary CVSS: v3.0 8.1 HIGH from [email protected]
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.047440000 probability, percentile 0.894940000 (date 2026-05-09)
Problem Types: CWE-119 | unspecified
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.0 | [email protected] | Primary | 8.1 | HIGH | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
| 2.0 | [email protected] | Primary | 9.3 | AV:N/AC:M/Au:N/C:C/I:C/A:C |
CVSS v3.0 Breakdown
Attack Vector
NetworkAttack Complexity
HighPrivileges Required
NoneUser Interaction
NoneScope
UnchangedConfidentiality
HighIntegrity
HighAvailability
HighCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v2.0 Breakdown
Access Vector
NetworkAccess Complexity
MediumAuthentication
NoneConfidentiality
CompleteIntegrity
CompleteAvailability
CompleteAV:N/AC:M/Au:N/C:C/I:C/A:C
NVD Known Affected Configurations (CPE 2.3)
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Na | Cisco ASA Software Before 9.62.1 | affected Cisco ASA Software before 9.6(2.1) | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| Cisco ASA Software Identity Firewall Feature Buffer Overflow Vulnerability | af854a3a-2127-422b-91ae-364da2661108 | tools.cisco.com | Mitigation, Vendor Advisory |
| Cisco Adaptive Security Appliance Products CVE-2016-6432 Buffer Overflow Vulnerability | af854a3a-2127-422b-91ae-364da2661108 | www.securityfocus.com | Third Party Advisory, VDB Entry |
| Cisco ASA Buffer Overflow in Identity Firewall Lets Remote Users Execute Arbitrary Code - SecurityTracker | af854a3a-2127-422b-91ae-364da2661108 | www.securitytracker.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.