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-2020-27124

26
FAUCET Score

CVE-2020-27124 is a denial-of-service vulnerability in the SSL/TLS handler of Cisco Adaptive Security Appliance (ASA) Software. An unauthenticated, remote attacker can exploit improper error handling in established SSL/TLS connections by sending a malicious message, causing the device to reload unexpectedly. This vulnerability has a high CVSS score of 8.6, indicating a severe impact on availability with low attack complexity and no user interaction required. While Cisco has released patches, there are no known workarounds, and there is currently no public exploit code or evidence of active exploitation, nor significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
9.13.1.12CPE matchmatch criteria
cpe:2.3:o:cisco:adaptive_security_appliance_software:9.13.1.12:*:*:*:*:*:*:*
9.13.1.13CPE matchmatch criteria
cpe:2.3:o:cisco:adaptive_security_appliance_software:9.13.1.13:*:*:*:*:*:*:*
9.14.1.10CPE matchmatch criteria
cpe:2.3:o:cisco:adaptive_security_appliance_software:9.14.1.10:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.6HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
4.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.88%
Probability of exploitation in next 30 days
EPSS Percentile
55.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0088 is in the 30th percentile among its peer group of 51,551 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

ciscovendor investigatingvia nvd_reference
View patch

References

sec.cloudapps.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ssl-dos-7uZWwSEy
Vendor Advisory
sec.cloudapps.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-cucm-xss-bLZw4Ctq
Not Applicable
sec.cloudapps.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-sa-rv-routers-xss-K7Z5U6q3
Not Applicable