8.6

CVE-2022-20745: cisco adaptive_security_appliance_software Improper Input Validation

CVSS: 8.6v3.1HighModified
Published 03-05-2022Last modified 06-11-2024
Open JSON

Vulnerability summary

CVE-2022-20745 is a high (CVSS 8.6) Improper Input Validation vulnerability in cisco adaptive_security_appliance_software. EPSS estimates a 1.50% chance of exploitation in the next 30 days, higher than 73.8% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.6/10
010
High · v3.1 (CVE.org)
EPSS score
1.50%
0%100%
Low · +0.03 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 03-05-2022
    PublishedVulnerability first disclosed.
  2. 06-11-2024
    Last modifiedVulnerability information updated.

Description

A vulnerability in the web services interface for remote access VPN features of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. This vulnerability is due to improper input validation when parsing HTTPS requests. An attacker could exploit this vulnerability by sending a crafted HTTPS request to an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

1.50%

Chance of exploitation in the next 30 days

Percentile

74%

Versus all other CVEs

30-day change

+0.03 pp

From 1.46% on 19-09-2026

19-09-202619-10-2026
EPSS score
1.50%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Cisco3 products

1 vendor · 3 products

References

1 links