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CVE-2018-0240

Affected software2 products, listed below
Severity8.6 High CVSS 3.1 2 scores
WeaknessCWE-399
Published19 Apr 2018
Updated11 Aug 2026

Description

Multiple vulnerabilities in the Application Layer Protocol Inspection feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to trigger a reload of an affected device, resulting in a denial of service (DoS) condition. The vulnerabilities are due to logical errors during traffic inspection. An attacker could exploit these vulnerabilities by sending a high volume of malicious traffic across an affected device. An exploit could allow the attacker to cause a deadlock condition, resulting in a reload of an affected device. These vulnerabilities affect Cisco ASA Software and Cisco FTD Software configured for Application Layer Protocol Inspection running on the following Cisco products: 3000 Series Industrial Security Appliance (ISA), ASA 5500 Series Adaptive Security Appliances, ASA 5500-X Series Next-Generation Firewalls, ASA Services Module for Cisco Catalyst 6500 Series Switches and Cisco 7600 Series Routers, Adaptive Security Virtual Appliance (ASAv), Firepower 2100 Series Security Appliance, Firepower 4100 Series Security Appliance, Firepower 9300 ASA Security Module, FTD Virtual (FTDv). Cisco Bug IDs: CSCve61540, CSCvh23085, CSCvh95456.

Exploitation status

No public exploit

No exploit has been reported in the sources we check. Published 8 years ago.
  • CISA KEV not listed
  • VulnCheck KEV not listed
  • CISA Vulnrichment exploitation: none
  • Indexed PoC none indexed
  • EPSS 3.9% chance in 30 days

Waratek protection

Outside Waratek scope

A Java vulnerability, but not one Waratek protects. It affects only Java on a user's desktop (applets, Web Start, JavaFX, the installer), sits in a product the Waratek agent can't be installed into, or is in a package we don't expect in business applications. The decision below says which.

  • Protection none
  • Action not pursued none
  • Review human Researcher
  • Record active
Decided by Manual classification of this CVE in the legacy dataset
Finding A manual classification set this CVE's status to Outside Waratek scope, but the CVE names a tracked product.

CVSS

8.6 HIGH v3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H 2 metrics

We show the highest score from the newest CVSS version. Scores from different versions can't be compared, and the first score listed is sometimes a 0.0 placeholder.

VersionScoreBandVectorAssignerType
CVSS 3.1 8.6 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H NVD Primary published
CVSS 2.0 7.8 none AV:N/AC:L/Au:N/C:N/I:N/A:C NVD Primary

Affected software and releases

Products and versions

2 products, 7 version entries
SourceVendorProductSchemeAffected versions
nvd cisco adaptive security appliance software generic ≥ 9.6.0.0 and ＜ 9.6.4.6 · ≥ 9.7.0.0 and ＜ 9.7.1.24 · ≥ 9.8.0.0 and ＜ 9.8.2.24 · ≥ 9.9.0.0 and ＜ 9.9.1.4
nvd cisco secure firewall threat defense generic ≥ 6.1.0 and ≤ 6.1.0.7 · ≥ 6.2.0 and ＜ 6.2.0.5 · ≥ 6.2.1 and ＜ 6.2.2.2

References

URLTags
http://www.securityfocus.com/bid/103934 Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1040722 Broken Link, Third Party Advisory, VDB Entry
https://ics-cert.us-cert.gov/advisories/ICSA-18-184-01 Third Party Advisory, US Government Resource
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-asa_inspect Vendor Advisory

Timeline
Published2018-04-19By the CVE Program.
NVD record modified2026-08-11NVD's own last-modified date for this record.