Search Results (158 CVEs found)

CVE Vendors Products Updated CVSS v3.1
CVE-2021-34794 1 Cisco 18 Adaptive Security Appliance Software, Asa 5505, Asa 5505 Firmware and 15 more 2026-08-11 5.3 Medium
A vulnerability in the Simple Network Management Protocol version 3 (SNMPv3) access control functionality of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to query SNMP data. This vulnerability is due to ineffective access control. An attacker could exploit this vulnerability by sending an SNMPv3 query to an affected device from a host that is not permitted by the SNMPv3 access control list. A successful exploit could allow the attacker to send an SNMP query to an affected device and retrieve information from the device. The attacker would need valid credentials to perform the SNMP query.
CVE-2021-34783 1 Cisco 18 Adaptive Security Appliance Software, Asa 5505, Asa 5505 Firmware and 15 more 2026-08-11 8.6 High
A vulnerability in the software-based SSL/TLS message handler of Cisco Adaptive Security Appliance (ASA) Software and Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. This vulnerability is due to insufficient validation of SSL/TLS messages when the device performs software-based SSL/TLS decryption. An attacker could exploit this vulnerability by sending a crafted SSL/TLS message to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition. Note: Datagram TLS (DTLS) messages cannot be used to exploit this vulnerability.
CVE-2020-3255 1 Cisco 25 Asa 5505, Asa 5505 Firmware, Asa 5510 and 22 more 2026-08-11 7.5 High
A vulnerability in the packet processing functionality of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to inefficient memory management. An attacker could exploit this vulnerability by sending a high rate of IPv4 or IPv6 traffic through an affected device. This traffic would need to match a configured block action in an access control policy. An exploit could allow the attacker to cause a memory exhaustion condition on the affected device, which would result in a DoS for traffic transiting the device, as well as sluggish performance of the management interface. Once the flood is stopped, performance should return to previous states.
CVE-2020-3254 1 Cisco 26 Adaptive Security Appliance Software, Asa 5505, Asa 5505 Firmware and 23 more 2026-08-11 7.5 High
Multiple vulnerabilities in the Media Gateway Control Protocol (MGCP) inspection feature of 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. The vulnerabilities are due to inefficient memory management. An attacker could exploit these vulnerabilities by sending crafted MGCP packets through an affected device. An exploit could allow the attacker to cause memory exhaustion resulting in a restart of an affected device, causing a DoS condition for traffic traversing the device.
CVE-2020-3283 1 Cisco 29 Asa 5505, Asa 5505 Firmware, Asa 5510 and 26 more 2026-08-11 8.6 High
A vulnerability in the Secure Sockets Layer (SSL)/Transport Layer Security (TLS) handler of Cisco Firepower Threat Defense (FTD) Software when running on the Cisco Firepower 1000 Series platform could allow an unauthenticated, remote attacker to trigger a denial of service (DoS) condition on an affected device. The vulnerability is due to a communication error between internal functions. An attacker could exploit this vulnerability by sending a crafted SSL/TLS message to an affected device. A successful exploit could allow the attacker to cause a buffer underrun, which leads to a crash. The crash causes the affected device to reload.
CVE-2019-1708 1 Cisco 10 Adaptive Security Appliance Software, Asa-5506-x, Asa-5525-x and 7 more 2026-08-11 8.6 High
A vulnerability in the Internet Key Exchange Version 2 Mobility and Multihoming Protocol (MOBIKE) feature for the Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a memory leak or a reload of an affected device that leads to a denial of service (DoS) condition. The vulnerability is due to the incorrect processing of certain MOBIKE packets. An attacker could exploit this vulnerability by sending crafted MOBIKE packets to an affected device to be processed. A successful exploit could cause an affected device to continuously consume memory and eventually reload, resulting in a DoS condition. The MOBIKE feature is supported only for IPv4 addresses.
CVE-2020-3298 1 Cisco 10 Adaptive Security Appliance Software, Asa 5506-x, Asa 5506h-x and 7 more 2026-08-11 7.5 High
A vulnerability in the Open Shortest Path First (OSPF) implementation of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the reload of an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to improper memory protection mechanisms while processing certain OSPF packets. An attacker could exploit this vulnerability by sending a series of malformed OSPF packets in a short period of time to an affected device. A successful exploit could allow the attacker to cause a reload of the affected device, resulting in a DoS condition for client traffic that is traversing the device.
CVE-2022-20866 1 Cisco 34 Adaptive Security Appliance Software, Asa 5506-x, Asa 5506h-x and 31 more 2026-08-11 7.4 High
A vulnerability in the handling of RSA keys on devices running Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to retrieve an RSA private key. This vulnerability is due to a logic error when the RSA key is stored in memory on a hardware platform that performs hardware-based cryptography. An attacker could exploit this vulnerability by using a Lenstra side-channel attack against the targeted device. A successful exploit could allow the attacker to retrieve the RSA private key. The following conditions may be observed on an affected device: This vulnerability will apply to approximately 5 percent of the RSA keys on a device that is running a vulnerable release of Cisco ASA Software or Cisco FTD Software; not all RSA keys are expected to be affected due to mathematical calculations applied to the RSA key. The RSA key could be valid but have specific characteristics that make it vulnerable to the potential leak of the RSA private key. If an attacker obtains the RSA private key, they could use the key to impersonate a device that is running Cisco ASA Software or Cisco FTD Software or to decrypt the device traffic. See the Indicators of Compromise section for more information on the detection of this type of RSA key. The RSA key could be malformed and invalid. A malformed RSA key is not functional, and a TLS client connection to a device that is running Cisco ASA Software or Cisco FTD Software that uses the malformed RSA key will result in a TLS signature failure, which means a vulnerable software release created an invalid RSA signature that failed verification. If an attacker obtains the RSA private key, they could use the key to impersonate a device that is running Cisco ASA Software or Cisco FTD Software or to decrypt the device traffic.
CVE-2007-0960 1 Cisco 2 Asa 5500, Pix Firewall Software 2026-04-23 N/A
Unspecified vulnerability in Cisco PIX 500 and ASA 5500 Series Security Appliances 7.2.2, when configured to use the LOCAL authentication method, allows remote authenticated users to gain privileges via unspecified vectors.
CVE-2007-0961 1 Cisco 2 Asa 5500, Pix Firewall Software 2026-04-23 N/A
Cisco PIX 500 and ASA 5500 Series Security Appliances 6.x before 6.3(5.115), 7.0 before 7.0(5.2), and 7.1 before 7.1(2.5), and the FWSM 3.x before 3.1(3.24), when the "inspect sip" option is enabled, allows remote attackers to cause a denial of service (device reboot) via malformed SIP packets.
CVE-2008-3815 1 Cisco 2 Asa 5500, Pix 2026-04-23 N/A
Unspecified vulnerability in Cisco Adaptive Security Appliances (ASA) 5500 Series and PIX Security Appliances 7.0 before 7.0(8)3, 7.1 before 7.1(2)78, 7.2 before 7.2(4)16, 8.0 before 8.0(4)6, and 8.1 before 8.1(1)13, when configured as a VPN using Microsoft Windows NT Domain authentication, allows remote attackers to bypass VPN authentication via unknown vectors.
CVE-2007-0959 1 Cisco 2 Asa 5500, Pix Firewall Software 2026-04-23 N/A
Cisco PIX 500 and ASA 5500 Series Security Appliances 7.2.2, when configured to inspect certain TCP-based protocols, allows remote attackers to cause a denial of service (device reboot) via malformed TCP packets.
CVE-2007-0962 1 Cisco 3 Asa 5500, Firewall Services Module, Pix Firewall Software 2026-04-23 N/A
Cisco PIX 500 and ASA 5500 Series Security Appliances 7.0 before 7.0(4.14) and 7.1 before 7.1(2.1), and the FWSM 2.x before 2.3(4.12) and 3.x before 3.1(3.24), when "inspect http" is enabled, allows remote attackers to cause a denial of service (device reboot) via malformed HTTP traffic.
CVE-2016-6367 1 Cisco 30 Adaptive Security Appliance Software, Asa 5500, Asa 5500-x and 27 more 2026-04-22 7.8 High
Cisco Adaptive Security Appliance (ASA) Software before 8.4(1) on ASA 5500, ASA 5500-X, PIX, and FWSM devices allows local users to gain privileges via invalid CLI commands, aka Bug ID CSCtu74257 or EPICBANANA.
CVE-2016-6366 1 Cisco 45 7604, 7606-s, 7609-s and 42 more 2026-04-22 8.8 High
Buffer overflow in Cisco Adaptive Security Appliance (ASA) Software through 9.4.2.3 on ASA 5500, ASA 5500-X, ASA Services Module, ASA 1000V, ASAv, Firepower 9300 ASA Security Module, PIX, and FWSM devices allows remote authenticated users to execute arbitrary code via crafted IPv4 SNMP packets, aka Bug ID CSCva92151 or EXTRABACON.
CVE-2006-3073 1 Cisco 2 Asa 5500, Vpn 3000 Concentrator Series Software 2026-04-16 N/A
Multiple cross-site scripting (XSS) vulnerabilities in the WebVPN feature in the Cisco VPN 3000 Series Concentrators and Cisco ASA 5500 Series Adaptive Security Appliances (ASA), when in WebVPN clientless mode, allow remote attackers to inject arbitrary web script or HTML via the domain parameter in (1) dnserror.html and (2) connecterror.html, aka bugid CSCsd81095 (VPN3k) and CSCse48193 (ASA). NOTE: the vendor states that "WebVPN full-network-access mode" is not affected, despite the claims by the original researcher.
CVE-2016-9225 1 Cisco 1 Asa Cx Context-aware Security Software 2025-04-20 N/A
A vulnerability in the data plane IP fragment handler of the Cisco Adaptive Security Appliance (ASA) CX Context-Aware Security module could allow an unauthenticated, remote attacker to cause the CX module to be unable to process further traffic, resulting in a denial of service (DoS) condition. The vulnerability is due to improper handling of IP fragments. An attacker could exploit this vulnerability by sending crafted fragmented IP traffic across the CX module. An exploit could allow the attacker to exhaust free packet buffers in shared memory (SHM), causing the CX module to be unable to process further traffic, resulting in a DoS condition. This vulnerability affects all versions of the ASA CX Context-Aware Security module. Cisco has not released and will not release software updates that address this vulnerability. There are no workarounds that address this vulnerability. Cisco Bug IDs: CSCva62946.
CVE-2016-1345 1 Cisco 2 Asa With Firepower Services, Firesight System Software 2025-04-12 N/A
Cisco FireSIGHT System Software 5.4.0 through 6.0.1 and ASA with FirePOWER Services 5.4.0 through 6.0.0.1 allow remote attackers to bypass malware protection via crafted fields in HTTP headers, aka Bug ID CSCux22726.
CVE-2016-1312 1 Cisco 2 Asa 5500 Csc-ssm, Asa 5500 Csc-ssm Firmware 2025-04-12 N/A
The HTTPS inspection engine in the Content Security and Control Security Services Module (CSC-SSM) 6.6 before 6.6.1164.0 for Cisco ASA 5500 devices allows remote attackers to cause a denial of service (memory consumption or device reload) via a flood of HTTPS packets, aka Bug ID CSCue76147.
CVE-2015-0678 1 Cisco 2 Asa Cx Context-aware Security Software, Asa With Firepower Services 2025-04-12 N/A
The virtualization layer in Cisco ASA FirePOWER Software before 5.3.1.2 and 5.4.x before 5.4.0.1 and ASA Context-Aware (CX) Software before 9.3.2.1-9 allows remote attackers to cause a denial of service (device reload) by rapidly sending crafted packets to the management interface, aka Bug IDs CSCus11007 and CSCun56954.