Security readout for executives and security teams
This flaw affects older Cisco firewall software and can let a user who already has local or CLI access gain full control. It is not an internet-drive-by issue, but firewalls are high-value infrastructure and CISA lists it as known exploited. Exposure is most likely on legacy Cisco ASA, PIX, or FWSM appliances running affected pre-8.4(1) software where users can access the CLI locally or through administrative channels. Treat this as a priority legacy firewall risk. Known exploitation and full-impact privilege escalation justify rapid identification and remediation, especially for perimeter or segmentation devices still running old Cisco software. Mitigation focus: Identify Cisco ASA, PIX, and FWSM assets and record running software versions.; Prioritize any affected pre-8.4(1) systems for vendor-guided upgrade or replacement.; Review Cisco advisory guidance before applying fixes to production firewalls..
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-77: Command execution behavior lookup
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Open ATT&CK lookupCVE-2016-6367 mapping review
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Open ATT&CK lookup- Severity
- High
- CVSS
- 7.8 (3.1)
- Known Exploited
- Yes
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/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:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H1.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.8HighVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- 40271CVE reference · exploit, x_refsource_EXPLOIT-DB
- https://github.com/offensive-security/exploit-database-bin-sploits/raw/master/sploits/40271.zipCVE reference · x_refsource_MISC
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2016-6367CVE 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 a Command ('Command Injection')
Improper Neutralization of Special Elements used in a Command ('Command Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.