Security readout for executives and security teams
This issue could let malicious SMB2 or SMB3 files pass through Cisco Firepower even when policy is set to block detected malware. It matters where Firepower is relied on to enforce file controls for Windows file-sharing traffic. The provided sources do not show confirmed active exploitation. Exposure is limited to Cisco Firepower System Software deployments before 6.2.3 that use one or more file action policies for SMB2 or SMB3 traffic. Organizations not inspecting SMB2/SMB3 file transfers with Firepower file action policies are less likely to be affected. Prioritize remediation where Firepower is a key malware-control point for SMB file-sharing traffic. This is not described as actively exploited in the supplied sources, but it weakens a security control intended to block malicious files. Mitigation focus: Upgrade affected Cisco Firepower System Software to 6.2.3 or later, following Cisco guidance.; Review Cisco advisory cisco-sa-20180418-fss and Bug ID CSCvg68807 for deployment-specific instructions.; Confirm file action policies still align with intended SMB2 and SMB3 malware-blocking requirements..
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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Open ATT&CK lookupCVE-2018-0243 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
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CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-fssCVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
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Protection Mechanism Failure
Protection Mechanism Failure represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.