Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2018-0101

86
FAUCET Score

CVE-2018-0101 is a critical vulnerability in the SSL VPN functionality of Cisco Adaptive Security Appliance (ASA) Software, affecting numerous Cisco products including ASA 5500 Series and Firepower appliances. This flaw, a double-free memory error (CWE-415), allows an unauthenticated, remote attacker to cause a system reload or execute arbitrary code by sending crafted XML packets. With a CVSS score of 10.0, it presents a severe risk due to its network-based attack vector, low complexity, and potential for complete system compromise. Exploit code is publicly available (EDB-43986), and the vulnerability has seen significant community discussion and media coverage, with reports of active exploitation in the wild.

Impacted Technologies

VendorProductVersion(s)CPE
< 9.1.7.23CPE matchmatch criteria
cpe:2.3:a:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*
>= 9.2.0, < 9.2.4.27CPE matchmatch criteria
cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*
>= 9.3.0, < 9.4.4.16CPE matchmatch criteria
cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*
>= 9.5.0, < 9.6.4.3CPE matchmatch criteria
cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*
>= 9.7.0, < 9.7.1.21CPE matchmatch criteria
cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

10.0CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
6.0
CvssVersion
3.0

Exploit Intelligence

EPSS Score
86.78%
Probability of exploitation in next 30 days
EPSS Percentile
99.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
ExploitDB: EDB-43986 · Feb 7, 2018
This CVE's current EPSS score of 0.8678 is in the 99th percentile among its peer group of 36,833 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

ciscovendor investigatingvia nvd_reference
View patch

References

icanthackit.wordpress.com / 2018/01/30/thoughts-on-the-handling-cve-2018-0101-cisco-bug-cscvg35618
Third Party Advisory
pastebin.com / YrBcG2Ln
ExploitThird Party Advisory
tools.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-20180129-asa1
Vendor Advisory
exploit-db.com / exploits/43986
ExploitThird Party AdvisoryVDB Entry
securityfocus.com / bid/102845
Third Party AdvisoryVDB Entry
securitytracker.com / id/1040292
Third Party AdvisoryVDB Entry