Security readout for executives and security teams
CVE-2019-7256 is a critical command injection issue in Linear eMerge E3-Series access controllers. An unauthenticated network attacker could potentially take control of the device, affecting confidentiality, integrity, and availability. Because CISA lists it in KEV, organizations should treat exposed devices as urgent. Exposure likely exists where Linear eMerge E3-Series access controllers are deployed, especially if management interfaces are reachable from the internet or untrusted networks. Packet Storm titles reference version 1.00-06, but the source bundle does not define authoritative affected versions. Prioritize immediately if any Linear eMerge E3-Series controller is deployed or externally reachable. This affects physical access infrastructure, has critical unauthenticated network impact, and is in CISA KEV. Mitigation focus: Identify all Linear eMerge E3-Series devices and their network exposure.; Check vendor, Applied Risk, and CISA guidance for supported fixes or mitigations.; Remove internet exposure and restrict access to trusted management networks or VPN..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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CWE-78: Command execution behavior lookup
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Open ATT&CK lookupCVE-2019-7256 mapping review
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Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.8 (3.1)
- Known Exploited
- Yes
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CISA KEV status
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9.8CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://applied-risk.com/labs/advisoriesCVE reference
- https://www.applied-risk.com/resources/ar-2019-005CVE reference
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-7256CVE reference · government-resource
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.