CVE-2016-6458
Summary
| CVE | CVE-2016-6458 |
|---|---|
| State | PUBLISHED |
| Assigner | cisco |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2016-11-19 03:03:01 UTC |
| Updated | 2026-05-06 22:30:45 UTC |
| Description | A vulnerability in the content filtering functionality of Cisco AsyncOS Software for Cisco Email Security Appliances could allow an unauthenticated, remote attacker to bypass content filters configured on an affected device. Email that should have been filtered could instead be forwarded by the device. This vulnerability affects all releases prior to the first fixed release of Cisco AsyncOS Software for Cisco Email Security Appliances, both virtual and hardware appliances, if the software is configured to use a content filter for email attachments that are protected or encrypted. More Information: CSCva52546. Known Affected Releases: 10.0.0-125 9.7.1-066. |
Risk And Classification
Primary CVSS: v3.0 7.5 HIGH from [email protected]
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
EPSS: 0.002150000 probability, percentile 0.437670000 (date 2026-05-10)
Problem Types: CWE-20 | unspecified
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.0 | [email protected] | Primary | 7.5 | HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
| 2.0 | [email protected] | Primary | 5 | AV:N/AC:L/Au:N/C:N/I:P/A:N |
CVSS v3.0 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
NoneUser Interaction
NoneScope
UnchangedConfidentiality
NoneIntegrity
HighAvailability
NoneCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CVSS v2.0 Breakdown
Access Vector
NetworkAccess Complexity
LowAuthentication
NoneConfidentiality
NoneIntegrity
PartialAvailability
NoneAV:N/AC:L/Au:N/C:N/I:P/A:N
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Cisco | Email Security Appliance Firmware | 10.0.0-124 | All | All | All |
| Operating System | Cisco | Email Security Appliance Firmware | 10.0.0-125 | All | All | All |
| Operating System | Cisco | Email Security Appliance Firmware | 9.7.1-066 | All | All | All |
| Operating System | Cisco | Email Security Appliance Firmware | 9.7.2-046 | All | All | All |
| Operating System | Cisco | Email Security Appliance Firmware | 9.7.2-047 | All | All | All |
| Operating System | Cisco | Email Security Appliance Firmware | 9.7.2-054 | All | All | All |
| Operating System | Cisco | Email Security Appliance Firmware | 9.9.6-026 | All | All | All |
| Operating System | Cisco | Email Security Appliance Firmware | 9.9_base | All | All | All |
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Na | Cisco AsyncOS 10.0.0-125 And 9.7.1-066 | affected Cisco AsyncOS 10.0.0-125 and 9.7.1-066 | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| Cisco AsyncOS CVE-2016-6458 Remote Security Bypass Vulnerability | af854a3a-2127-422b-91ae-364da2661108 | www.securityfocus.com | |
| Cisco Email Security Appliance Lets Remote Users Bypass RAR Scanning on the Target System - SecurityTracker | af854a3a-2127-422b-91ae-364da2661108 | www.securitytracker.com | |
| Cisco Email Security Appliance RAR File Attachment Scanner Bypass Vulnerability | af854a3a-2127-422b-91ae-364da2661108 | tools.cisco.com | Vendor Advisory |
| 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.