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CVE-2018-0370: A vulnerability in the detection engine of Cisco Firepower System Software could allow an unauthenticated,...

A vulnerability in the detection engine of Cisco Firepower System Software could allow an unauthenticated, remote attacker to cause one of the detection engine processes to run out of memory and thus slow down traffic processing. The vulnerability is due to improper handling of traffic when the Secure Sockets Layer (SSL) inspection policy is enabled. An attacker could exploit this vulnerability by sending malicious traffic through an affected device. An exploit could allow the attacker to increase the resource consumption of a single instance of the Snort detection engine on an affected device. This will lead to performance degradation and eventually the restart of the affected Snort process. Cisco Bug IDs: CSCvi09219, CSCvi29845.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysis

Security readout for executives and security teams

This flaw can let a remote, unauthenticated attacker make an affected Cisco Firepower device consume excessive detection-engine memory when SSL inspection is enabled. The likely business effect is degraded traffic processing and restart of a Snort process, reducing inspection reliability during an attack or traffic surge. Exposure appears limited to Cisco Firepower System Software deployments using SSL inspection policy. The source bundle does not provide exact affected versions, fixed versions, or deployment counts, so owners should validate against Cisco’s advisory and local device configuration. Treat this as a reliability and security-inspection continuity issue. Prioritize validation where Firepower sits inline on critical traffic paths, especially when SSL inspection is enabled. Urgency is moderate because active exploitation is not evidenced in the provided sources. Mitigation focus: Review Cisco’s advisory for affected and fixed software guidance.; Inventory Cisco Firepower deployments and software versions.; Identify devices with SSL inspection policy enabled..

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Potential ATT&CK relevance

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CVE-2018-0370 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

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.

0CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/aCisco Firepower unknownCisco Firepower unknownListed
Weakness

CWE details

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CWE-399 · source CWE mapping

Resource Management Errors

Resource Management Errors represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.