---
title: "CVE-2018-0101: Double Free | CubePath"
description: "A vulnerability in the Secure Sockets Layer (SSL) VPN functionality of the Cisco Adaptive Security Appliance (ASA) Software…"
language: en
source: https://cubepath.com/security/cve/CVE-2018-0101
---

# CVE-2018-0101: Double Free | CubePath

## Description

A vulnerability in the Secure Sockets Layer (SSL) VPN functionality of the Cisco Adaptive Security Appliance (ASA) Software could allow an unauthenticated, remote attacker to cause a reload of the affected system or to remotely execute code. The vulnerability is due to an attempt to double free a region of memory when the webvpn feature is enabled on the Cisco ASA device. An attacker could exploit this vulnerability by sending multiple, crafted XML packets to a webvpn-configured interface on the affected system. An exploit could allow the attacker to execute arbitrary code and obtain full control of the system, or cause a reload of the affected device. This vulnerability affects Cisco ASA Software that is 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, ASA 1000V Cloud Firewall, Adaptive Security Virtual Appliance (ASAv), Firepower 2100 Series Security Appliance, Firepower 4110 Security Appliance, Firepower 9300 ASA Security Module, Firepower Threat Defense Software (FTD). Cisco Bug IDs: CSCvg35618.

Official description from the CVE record, published by cisco. Copyright © 1999-2026 The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CVE license. [View the record on cve.org](https://www.cve.org/CVERecord?id=CVE-2018-0101)

## Key data

### EPSS

Exploit Prediction Scoring System by FIRST: an estimate of the probability that exploitation activity will be observed in the next 30 days.

Score

0.86780 (86.8% probability)

Percentile

99.7%

Scores of

Nov 10, 2026

Model

v2026.06.15

### CISA assessment as of Dec 2, 2024

Stakeholder-Specific Vulnerability Categorization (SSVC) decision points added by CISA.

Automatable

yes

Technical impact

total

### Weakness (CWE)

CWE catalog version 5.0.

CWE names: Copyright © 2006-2026, The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CWE license.

- [CWE-415](https://cwe.mitre.org/data/definitions/415.html) Double Free

## Affected products

Products listed in the CVE record, as the CNA published them.

- Cisco Adaptive Security Appliance

  - affected: Cisco Adaptive Security Appliance

## References

Links listed in the CVE record. They lead to other sites, which CubePath does not control.

- [icanthackit.wordpress.com/2018/01/30/thoughts-on-the-handli…](https://icanthackit.wordpress.com/2018/01/30/thoughts-on-the-handling-cve-2018-0101-cisco-bug-cscvg35618/)
- [102845](http://www.securityfocus.com/bid/102845)  (securityfocus.com) vdb-entry
- [tools.cisco.com/security/center/content/CiscoSecurityAdviso…](https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180129-asa1)
- [1040292](http://www.securitytracker.com/id/1040292)  (securitytracker.com) vdb-entry
- [43986](https://www.exploit-db.com/exploits/43986/)  (exploit-db.com) exploit
- [pastebin.com/YrBcG2Ln](https://pastebin.com/YrBcG2Ln)

## Timeline

1. ID reserved Nov 27, 2017
2. Record published Jan 29, 2018
3. Record last updated Dec 2, 2024

## Look up another CVE

## About CubePath

CubePath is a cloud provider with data centers in Europe and the United States. It offers VPS, bare metal servers and DDoS protection.

[Cloud VPS](https://cubepath.com/vps) [DDoS protection](https://cubepath.com/ddos-protection)

Data from the CVE Program (MITRE), CISA KEV and FIRST EPSS. CVSS is owned by FIRST and used by permission. Not affiliated with or endorsed by MITRE, CISA or FIRST. Data as of Nov 10, 2026, 19:58 UTC. [Sources and licenses](https://cubepath.com/security/cve/legal)