vulntracker.iovulntracker.io
© 2026 vulntracker.io

CVE-2018-0243

N/A
Published: April 19, 2018 at 08:00 PM UTC
Updated: August 11, 2026 at 07:37 PM UTC
2 products affected across 1 vendorSecure Firewall Threat DefenseFiresight System

Using Cisco Firepower System Software by N/A?

Get instant alerts when new vulnerabilities affect Cisco Firepower System Software - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Start FreeSign In
Severity
N/A
Exploit prediction
EPSS 1%
SSVC
No known exploit

Description

A vulnerability in the detection engine of Cisco Firepower System Software could allow an unauthenticated, remote attacker to bypass a configured file action policy that is intended to drop the Server Message Block Version 2 (SMB2) and SMB Version 3 (SMB3) protocols if malware is detected. The vulnerability is due to incorrect detection of an SMB2 or SMB3 file based on the total file length. An attacker could exploit this vulnerability by sending a crafted SMB2 or SMB3 transfer request through the targeted device. An exploit could allow the attacker to pass SMB2 or SMB3 files that could be malware even though the device is configured to block them. This vulnerability does not exist for SMB Version 1 (SMB1) files. This vulnerability affects Cisco Firepower System Software when one or more file action policies are configured, on software releases prior to 6.2.3. Cisco Bug IDs: CSCvg68807.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

VDB Entryx_refsource_BIDThird Party Advisory
Source: [email protected]
http://www.securityfocus.com/bid/103943
x_refsource_CONFIRMVendor Advisory
Source: [email protected]
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-fss

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5MEDIUM[email protected]
Confidentiality
NONE
Integrity
PARTIAL
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-693

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Create accountSign in
Free plan, no card