Is CVE-2022-20715 in the CISA KEV catalog?

No. CVE-2022-20715 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-20715?

CVE-2022-20715 has a CVSS v3 base score of 8.6 (HIGH).

What is the EPSS score for CVE-2022-20715?

CVE-2022-20715 has an EPSS score of 1.26% (66th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-20715?

Upgrade adaptive security appliance software to 9.17.1.7 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2022-20715

HIGH

8.6

CVSS v3

NVD

Description

A vulnerability in the remote access SSL 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 on an affected device. This vulnerability is due to improper validation of errors that are logged as a result of client connections that are made using remote access VPN. An attacker could exploit this vulnerability by sending crafted requests to an affected system. A successful exploit could allow the attacker to cause the affected device to restart, resulting in a DoS condition.

CWE-399Resource Management Errors CWE-20Improper Input Validation

How to fix

Remediation Available

adaptive security appliance softwareNVD

Affected:>= 9.17.0, < 9.17.1.7Fixed in:9.17.1.7CVE-2022-20715derived from NVD

firepower threat defenseNVD

Affected:>= 6.7.0, < 7.0.2Fixed in:7.0.2CVE-2022-20715derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeChanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

1.26%probability of exploitation in 30 days

66thpercentile

Moderate risk: more likely to be exploited than 66% of all known CVEs.

References

Vendor Advisory1

tools.cisco.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.