Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2018-0296

CVE-2018-0296HIGH

n/a Cisco Adaptive Security Appliance unknown — Cisco Adaptive Security Appliance (ASA)

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS    %ile   KEV
   N   L   N   N  U  N  N  H    7.5   .9991   100.0   YES

AFFECTED
  Product                                    Versions                                     Fixed
  Cisco Adaptive Security Appliance unknown  Cisco Adaptive Security Appliance unknown –  —

TIMELINE
  Nov 27  Reserved by cisco
  Jun 7   Published (CNA: cisco)
  Nov 3   Added to CISA KEV, remediation due 2022-05-03
  Aug 11  ENRICHED — CVE-2018-0296 (Cisco Adaptive Security Appliance (ASA)). Received CVSS 7.5 and CPE data from NVD.
  Aug 11  EXPLOIT PUBLISHED — CVE-2018-0296 (Cisco Adaptive Security Appliance (ASA)). Public exploit reference added.

CWE-20 · CNA: cisco · CVSS v3.1 · 7 references · NVD status: Analyzed · KEV due May 3, 2022

Description

A vulnerability in the web interface of the Cisco Adaptive Security Appliance (ASA) could allow an unauthenticated, remote attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition. It is also possible on certain software releases that the ASA will not reload, but an attacker could view sensitive system information without authentication by using directory traversal techniques. The vulnerability is due to lack of proper input validation of the HTTP URL. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. An exploit could allow the attacker to cause a DoS condition or unauthenticated disclosure of information. This vulnerability applies to IPv4 and IPv6 HTTP traffic. This vulnerability affects Cisco ASA Software and Cisco Firepower Threat Defense (FTD) Software that is running on the following Cisco products: 3000 Series Industrial Security Appliance (ISA), ASA 1000V Cloud Firewall, 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: CSCvi16029.

Lifecycle

Complete event history — 5 events, chronological
Date	Event	Detail
November 27, 2017	Reserved	Reserved by cisco
June 7, 2018	Published	Published (CNA: cisco)
November 3, 2021	KEV ADDED	Added to CISA KEV, remediation due 2022-05-03
August 11, 2026	ENRICHED	ENRICHED — CVE-2018-0296 (Cisco Adaptive Security Appliance (ASA)). Received CVSS 7.5 and CPE data from NVD.
August 11, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2018-0296 (Cisco Adaptive Security Appliance (ASA)). Public exploit reference added.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
n/a	Cisco Adaptive Security Appliance unknown	—	Cisco Adaptive Security Appliance unknown	—

Weaknesses

CWE-20

References (7)

http://packetstormsecurity.com/files/154017/Cisco-Adaptive-Security-Appliance-Path-Traversal.html [x_refsource_MISC]
http://www.securityfocus.com/bid/104612 [vdb-entry, x_refsource_BID]
http://www.securitytracker.com/id/1041076 [vdb-entry, x_refsource_SECTRACK]
https://ics-cert.us-cert.gov/advisories/ICSA-18-184-01 [x_refsource_MISC]
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180606-asaftd [x_refsource_CONFIRM]
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-0296 [government-resource]
https://www.exploit-db.com/exploits/44956/ [exploit, x_refsource_EXPLOIT-DB]

Authoritative record: CVE-2018-0296 at cve.org

Weaknesses: CWE-20

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2018-0296 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Sunday, October 4, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.