High severity · published Apr 29, 2021
CVE-2021-1504
Multiple vulnerabilities in Cisco Adaptive Security Appliance (ASA) Software and Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a…
7.5
CVSS
1.7%
EPSS
No
On KEV
Description
Multiple vulnerabilities in Cisco Adaptive Security Appliance (ASA) Software and Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. These vulnerabilities are due to lack of proper input validation of the HTTPS request. An attacker could exploit these vulnerabilities by sending a crafted HTTPS request to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition. Note: This vulnerability affects only specific AnyConnect and WebVPN configurations. For more information, see the Vulnerable Products section.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.7% · higher than 76% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AS
Adaptive Security Appliance Software · Cisco
9.7 before 9.8.4.35; 9.9 before 9.9.2.85; 9.10 before 9.12.4.10; 9.13 before 9.13.1.21; 9.14 before 9.14.2.4; 9.15 before 9.15.1.7 · source: NVD
SF
Secure Firewall Threat Defense · Cisco
6.5.0 before 6.6.4; 6.7.0 before 6.7.0.1 · source: NVD
Affected product
AS
Adaptive Security Appliance Software
Cisco
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