CVE-2021-44228

CVE-2021-44228 (Log4Shell) affects Apache Log4j2 2.0-beta9 through 2.15.0 (excluding some security releases) and is specific to log4j-core. The vulnerability arises from JNDI features used in configuration, log messages, and parameters, which can be exploited when an attacker can control log mess...

CVE-2022-20685

CVE-2022-20685 is a DoS vulnerability in the Snort Modbus preprocessor caused by an integer overflow when processing Modbus traffic. An unauthenticated, remote attacker could craft traffic to cause the Snort process to hang and halt traffic inspection. Cisco has released software updates addressi...

CVE-2020-3452

CVE-2020-3452 affects Cisco ASA Software and Cisco Firepower Threat Defense (FTD) web services. The issue is due to improper input validation of URLs in HTTP requests, enabling unauthenticated, remote attackers to perform directory traversal and read files from the web services filesystem (enable...

CVE-2018-0296

CVE-2018-0296 affects Cisco ASA and related FTD/FTD-based offerings, where an improper input validation of HTTP URLs in the web interface allows unauthenticated remote access to trigger DoS (device reload) or, on some releases, expose sensitive information via directory traversal. Public referenc...

CVE-2023-20269

Cisco ASA/FTD remote access VPN vulnerability CVE-2023-20269 allows an unauthenticated, remote attacker to perform brute force against credentials or, for older releases (

CVE-2024-20359

CVE-2024-20359 affects Cisco ASA and Cisco FTD. A legacy capability flaw allows an authenticated local attacker to exploit improper validation of a file read from flash memory by copying a crafted file to disk0:, enabling arbitrary code execution with root privileges after the next device reload....

CVE-2024-20353

CVE-2024-20353 affects Cisco ASA/FTD Web Services. The vulnerability stems from incomplete error checking when parsing HTTP headers, allowing an unauthenticated remote attacker to trigger a reload and cause a DoS. Exploitation is referenced by multiple sources, including CISA’s Known Exploited Vu...

CVE-2020-3187

Cisco ASA/FTD web services interface (Cisco ASA Software and Cisco Firepower Threat Defense) is vulnerable to CVE-2020-3187 via directory traversal. The authenticated or unauthenticated attacker can craft HTTP requests (e.g., to /+CSCOE+/session_password.html) to view and delete files within the ...

CVE-2020-3259

CVE-2020-3259 is Cisco ASA/FTD Web Services Information Disclosure: an unauthenticated attacker could retrieve memory contents via crafted GET requests due to a buffer-tracking issue, with impact limited to specific AnyConnect/WebVPN configurations. Cisco and CVE listings confirm information disc...

CVE-2023-20275

CVE-2023-20275 affects Cisco ASA Software and Cisco Firepower Threat Defense (FTD) Software, specifically the AnyConnect SSL VPN feature. The root cause is improper validation of the inner source IP address after decryption, allowing an authenticated, remote attacker to send packets that appear t...

CVE-2024-20481

The CVE-2024-20481 entry concerns Cisco ASA/FTD Remote Access VPN (RAVPN) DoS from resource exhaustion. Affected components: ASA and FTD software; vulnerability arises when an unauthenticated, remote attacker sends a flood of VPN authentication requests, exhausting device resources and potentiall...

CVE-2024-20407

Cisco Firepower Threat Defense (FTD) Software contains a vulnerability in the interaction between the TCP Intercept feature and Snort 3 detection engine that could allow an unauthenticated, remote attacker to bypass configured policies and inject unintended traffic through an affected device. The...

CVE-2023-20095

The CVE-2023-20095 issue affects Cisco ASA and Cisco Firepower Threat Defense (FTD) remote access VPN. The root cause is improper handling of HTTPS requests, allowing an unauthenticated remote attacker to trigger resource exhaustion and a DoS on affected devices. Connected sources confirm this vu...

CVE-2022-20713

CVE-2022-20713 affects Cisco ASA/FTD VPN web client services. Root cause: improper input validation sent to the VPN web client, enabling an unauthenticated user to trigger browser-based attacks (e.g., cross-site scripting) by persuading a user to visit a crafted site. Impact is browser-executable...

CVE-2024-20358

Cisco ASA/FTD restore-functionality command-injection vulnerability (CVE-2024-20358) allows an authenticated, local attacker to execute arbitrary root commands by restoring a crafted backup file. Root access is required, with administrator privileges. Cisco has released updates to fix this vulner...

CVE-2022-20947

CVE-2022-20947 affects Cisco ASA and Firepower Threat Defense (FTD) software via the Dynamic Access Policies (DAP) feature. The root cause is improper processing of HostScan data from the Posture module, allowing an unauthenticated, remote attacker to cause an affected device to reload and suffer...

CVE-2023-20083

CVE-2023-20083 affects Cisco Firepower Threat Defense (FTD) Software in ICMPv6 inspection when Snort 2 is enabled. The flaw stems from improper error checking while parsing ICMPv6 header fields, allowing an unauthenticated remote attacker to trigger CPU exhaustion (up to 100%) and cause a DoS by ...

CVE-2023-20086

CVE-2023-20086 affects Cisco ASA and Cisco FTD software, where improper ICMPv6 message processing could let an unauthenticated, remote attacker trigger a DoS by forcing a device reload. This is a network-facing issue (CVSS v3.1: 8.6, HIGH, NO privileges required; CPU/network target), with exploit...

CVE-2024-20402

CVE-2024-20402 affects Cisco ASA (SSL VPN) and Cisco FTD (SSL VPN) where a logic error in SSL VPN memory management can be exploited by unauthenticated remote attackers to cause the device to reload, leading to a DoS. Affected components: SSL VPN handling on ASA/FTD software. Root cause: memory-m...

CVE-2020-3254

The CVE-2020-3254 issue affects Cisco ASA and Firepower Threat Defense (FTD) software, specifically the Media Gateway Control Protocol (MGCP) inspection feature. The vulnerability arises from inefficient memory management in MGCP inspection, allowing an unauthenticated, remote attacker to send cr...

CVE-2025-20182

The CVE-2025-20182 entry describes a DoS vulnerability in IKEv2 message processing affecting Cisco ASA, FTD, IOS, and IOS XE. The root cause is insufficient input validation when handling IKEv2 traffic, which could allow an unauthenticated remote attacker to force a device reload and thus a DoS c...

CVE-2021-1573

Cisco CVE-2021-1573 affects the web services interface of ASA Software and FTD Software. An unauthenticated remote attacker can trigger a DoS by sending crafted HTTPS requests, due to improper input validation when parsing HTTPS requests, causing the device to reload. Affected products: Cisco ASA...

CVE-2018-15454

CVE-2018-15454 affects the SIP inspection engine in Cisco ASA Software and Cisco FTD Software. The root cause is improper handling of SIP traffic, allowing an unauthenticated, remote attacker to trigger high CPU usage or reload the device, leading to DoS. Public sources describe this as a SIP par...

CVE-2018-15383

Cisco ASA and Firepower Threat Defense (FTD) software are affected by CVE-2018-15383 due to a vulnerability in the cryptographic hardware accelerator driver. The issue arises from limited DMA memory and improper handling of resources under low-memory conditions, which an unauthenticated remote at...

CVE-2023-20063

Cisco Firepower Threat Defense (FTD) and Cisco Firepower Management Center (FMC) inter-device communication contains a code-injection vulnerability due to insufficient input validation. An authenticated, local attacker who gains admin privileges on an associated device can use expert mode to subm...

CVE-2023-20244

CVE-2023-20244 affects Cisco Firepower Threat Defense (FTD) on Cisco Firepower 2100 Series, with vulnerable internal packet processing in the inspection engine. The issue allows an unauthenticated, remote attacker to trigger a DoS by sending crafted packets, potentially depleting all 9,472-byte b...

CVE-2024-20355

CVE-2024-20355 affects Cisco ASA/FTD SAML SSO. The issue stems from improper separation of authorization domains, allowing an authenticated remote user to reuse a SAML token to access a tunnel group they are not authorized for, enabling a remote VPN session to secured networks behind the device. ...

CVE-2022-20934

CVE-2022-20934 affects Cisco Firepower Threat Defense (FTD) and Cisco FXOS Software. The issue is a command-injection vulnerability in the CLI caused by insufficient input validation, allowing an authenticated, local attacker with Administrator privileges to inject OS commands and gain root acces...

CVE-2022-20854

The CVE-2022-20854 issue affects Cisco Firepower Management Center (FMC) and Firepower Threat Defense (FTD) Software, caused by improper error handling during SSH session establishment. An unauthenticated, remote attacker sending a high rate of crafted SSH connections can exhaust resources, leadi...

CVE-2022-20928

CVE-2022-20928 describes a VPN authorization bypass in Cisco ASA/FTD where a flaw in the VPN authentication flow’s authorization verifications allows an unauthenticated remote attacker (with valid credentials) to establish a VPN session as a different user. The impact is privilege propagation wit...

CVE-2019-12700

The CVE-2019-12700 issue affects Cisco Firepower Threat Defense (FTD), Cisco Firepower Management Center (FMC), and Cisco FXOS Software. It is caused by improper resource management in PAM user session handling, enabling an authenticated remote attacker to exhaust system resources by initiating m...

CVE-2022-20940

Cisco Firepower Threat Defense (FTD) Software is affected by a Bleichenbacher-related information disclosure in the TLS handler and SSL decryption policy implementation. The root cause is improper countermeasures against Bleichenbacher attacks, allowing an unauthenticated remote attacker to poten...

CVE-2023-20247

Cisco ASA (Adaptive Security Appliance) and Firepower Threat Defense (FTD) Software remote access SSL VPN vulnerabilities allow an authenticated, remote attacker to bypass a configured multiple certificate authentication policy and connect with only a valid username/password. Root cause is improp...

CVE-2024-20261

CVE-2024-20261 affects Cisco Firepower Threat Defense (FTD) Software via the file policy feature that inspects encrypted archive files. The issue is a logic error triggered when inspecting a specific class of encrypted archives, allowing an unauthenticated, remote attacker to bypass a configured ...

CVE-2020-3255

Cisco Firepower Threat Defense (FTD) Software contains a DoS vulnerability in the packet processing path caused by inefficient memory management. A remote, unauthenticated attacker can send a high rate of IPv4/IPv6 traffic that matches an ACL block action, triggering memory exhaustion and DoS for...

CVE-2020-3196

Cisco CVE-2020-3196 describes a memory exhaustion DoS in the SSL/TLS handler of ASA Software and FTD Software. An unauthenticated, remote attacker can open multiple SSL/TLS connections under certain conditions to exhaust device memory, causing the device to stop accepting new SSL/TLS connections ...

CVE-2020-3191

The CVE-2020-3191 issue affects Cisco ASA (Adaptive Security Appliance) and Cisco FTD (Firepower Threat Defense) software and is caused by improper length validation in fields of IPv6 DNS packets. The vulnerability allows an unauthenticated, remote attacker to trigger a device reload via a crafte...

CVE-2024-20493

CVE-2024-20493 affects Cisco ASA (Adaptive Security Appliance) and Cisco FTD (Firepower Threat Defense) during the Remote Access SSL VPN authentication phase. The vulnerability stems from ineffective handling of memory resources in the authentication process, which can be triggered by crafted pac...

CVE-2022-20949

CVE-2022-20949 describes a privilege-escalation flaw in the management web server of Cisco Firepower Threat Defense (FTD) Software. An authenticated, remote attacker with high privileges could issue configuration commands on the affected system due to improper access control of HTTPS endpoints, w...

CVE-2024-20297

CVE-2024-20297 affects Cisco ASA and Firepower Threat Defense (FTD) via a logic error in populating group ACLs when an AnyConnect client starts a new session. This could allow an unauthenticated, remote attacker to bypass ACL rules and permit traffic that should be denied on the affected device. ...

CVE-2024-20408

The CVE-2024-20408 entry concerns Cisco ASA and FTD Dynamic Access Policies (DAP). The vulnerability arises from improper validation of data in HTTPS POST requests to DAP, enabling an authenticated, remote attacker with valid VPN credentials to cause the device to reload, producing a DoS conditio...

CVE-2024-20299

CVE-2024-20299 affects Cisco ASA (ASA Software) and Cisco FTD (FTD Software). The issue is a logic error in populating group ACLs when an AnyConnect session is established, allowing an unauthenticated, remote attacker to bypass configured ACL rules and pass traffic that should be denied. Public s...

CVE-2024-20485

Cisco ASA/FTD VPN web server vulnerability (CVE-2024-20485) allows an authenticated, local attacker to execute arbitrary code with root privileges after a next device reload. Root cause: improper validation of a file read from system flash memory; attacker can trigger via restoring a crafted back...

CVE-2024-20331

The CVE-2024-20331 entry describes a denial-of-service scenario in the Cisco ASA VPN and Firepower Threat Defense (FTD) Remote Access SSL VPN session authentication. Root cause: insufficient entropy in the authentication process, enabling an unauthenticated, remote attacker to determine an authen...

CVE-2024-20341

Summary: CVE-2024-20341 targets Cisco ASA/FTD VPN Web Client Services. A vulnerability in input validation allows an unauthenticated, remote attacker to trigger cross-site scripting (XSS) in a browser accessing the affected device. The attacker persuades a user to click a crafted link, enabling e...

CVE-2024-20351

CVE-2024-20351 describes a Denial of Service vulnerability in the TCP/IP traffic handling function of the Snort Detection Engine used by Cisco Firepower Threat Defense (FTD) software and Cisco FirePOWER Services. An unauthenticated, remote attacker can trigger high traffic volume to cause legitim...

CVE-2018-0138

CVE-2018-0138 affects Cisco Firepower System Software’s detection engine, enabling an unauthenticated remote attacker to bypass BitTorrent file policies by sending crafted BitTorrent handshake requests. This bypass specifically targets the detection logic that blocks BitTorrent-delivered files; e...

CVE-2019-1709

CVE-2019-1709 affects Cisco Firepower Threat Defense Software’s CLI, where insufficient input validation allows an authenticated, local attacker to perform a command injection, potentially executing commands with root privileges. The issue concerns the CLI and specific command arguments, with exp...

CVE-2024-20339

The CVE-2024-20339 entry concerns Cisco Firepower Threat Defense (FTD) for the 2100 Series. The vulnerability resides in the TLS processing path and can be exploited by unauthenticated, remote attackers sending specific TLS traffic over IPv4, potentially causing the affected device to reload and ...

CVE-2026-20064

CVE-2026-20064 affects Cisco Secure Firewall Threat Defense (FTD) Software. The issue stems from improper validation of user-supplied input, enabling an authenticated, local attacker to inject crafted CLI commands and cause the device to reload, resulting in a DoS. The vulnerability is categorize...