CVE-2022-20715: cisco adaptive_security_appliance_software Resource Management Errors
Vulnerability summary
CVE-2022-20715 is a high (CVSS 8.6) Resource Management Errors vulnerability in cisco adaptive_security_appliance_software. EPSS estimates a 1.36% chance of exploitation in the next 30 days, higher than 71.2% of scored vulnerabilities.
Timeline
- 03-05-2022PublishedVulnerability first disclosed.
- 16-09-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
3 scores · 2 sources · 2 versions- NVDNIST8.6HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
EPSS trend
Probability
1.36%
Chance of exploitation in the next 30 days
Percentile
71%
Versus all other CVEs
30-day change
+0.03 pp
From 1.32% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-399Resource Management ErrorsWeaknesses in this category are related to improper management of system resources.
- CWE-20Improper Input ValidationThe product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
Affected systems
Cisco3 products
- adaptive_security_appliance_software< 9.8.4.44 | ≥ 9.9, < 9.12.4.38 | ≥ 9.13, < 9.14.4 | ≥ 9.15, < 9.15.1.21 | ≥ 9.16.0, < 9.16.2.14 | ≥ 9.17.0, < 9.17.1.7
- cisco adaptive security appliance (asa) softwaren/a
- secure_firewall_threat_defense< 6.4.0.15 | ≥ 6.5.0, < 6.6.5.2 | ≥ 6.7.0, < 7.0.2 | 7.1.0
1 vendor · 3 products
References
1 links- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-dos-tL4uA4AAVendor AdvisoryX Refsource CISCO