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-2024-20330

CVE-2024-20330 affects Cisco Firepower Threat Defense (FTD) Software on Cisco Firepower 2100 Series Appliances, impacting the Snort TCP/UDP detection engine. The vulnerability arises from improper memory management in the Snort detection engine, allowing unauthenticated remote attackers to trigge...

CVE-2026-20052

CVE-2026-20052 affects Cisco Secure Firewall Threat Defense (FTD) when Snort 3 Detection Engine handles SSL packet inspection. A logic error in memory management could be triggered by an unauthenticated remote attacker sending crafted SSL packets over the network, potentially causing the Snort 3 ...

CVE-2019-12627

CVE-2019-12627 is a Cisco Firepower Threat Defense (FTD) Software information-disclosure vulnerability caused by insufficient application identification in the application policy configuration. An unauthenticated, remote attacker could gain unauthorized read access to sensitive data by sending cr...

CVE-2021-34787

Cisco ASA/FTD IDFW rule-bypass (CVE-2021-34787) affects Identity-Based Rule Processing in ASA Software and FTD. Affected devices that use object group search may mishandle certain network requests, allowing an unauthenticated remote attacker to bypass ACLs and security protections, potentially se...

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-2017-3887

CVE-2017-3887 concerns Cisco Firepower System Software’s SSL packet handling in the detection engine when configured with an SSL Decrypt-Resign policy. An unauthenticated, remote attacker could trigger a DoS by causing the Snort process to restart, degrading or bypassing traffic inspection. Affec...

CVE-2019-12673

CVE-2019-12673 is a DoS vulnerability in the FTP inspection engine of Cisco ASA/FTD software caused by insufficient validation of FTP data. An unauthenticated, remote attacker can send crafted FTP traffic through an affected device to disrupt responsiveness. Cisco and related advisories confirm t...

CVE-2019-1701

Cisco CVE-2019-1701 covers multiple WebVPN XSS vulnerabilities in Cisco ASA and Firepower Threat Defense (FTD). Affected component: WebVPN portal; root cause: insufficient input validation allowing crafted links to execute arbitrary script in the user’s browser. Prerequisites: attacker must have ...

CVE-2020-3253

Cisco Firepower Threat Defense (FTD) Software contains a shell access vulnerability in the support tunnel feature. An authenticated, local attacker can enable the support tunnel, set a key, and derive the tunnel password to execute arbitrary commands with root privileges, even when expert mode is...

CVE-2020-3285

Cisco Firepower Threat Defense Software TLS 1.3 URL category bypass vulnerability (CVE-2020-3285) arises from a Snort handling logic error. An unauthenticated, remote attacker could bypass the TLS 1.3 policy to access URLs that should be dropped. Affected product: FTD software with TLS policy URL...

CVE-2021-34756

Cisco Firepower Threat Defense (FTD) Software contains CLI command injection vulnerabilities that allow an authenticated, local attacker to execute arbitrary commands with root privileges due to insufficient validation of user-provided command arguments. Affected component is the FTD CLI; impact ...

CVE-2019-12675

Cisco Firepower Threat Defense (FTD) Software contains multiple vulnerabilities in the multi-instance container feature that could allow an authenticated, local attacker to escape the attacker’s FTD container and execute commands with root privileges in the host namespace . The root cause is insu...

CVE-2020-3308

Cisco Firepower Threat Defense (FTD) Software is vulnerable in its Image Signature Verification feature. The root cause is improper verification of digital signatures for patch images, enabling an authenticated, remote attacker with administrator-level credentials to craft and load an unsigned pa...

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-2018-0243

Cisco Firepower System Software contains a vulnerability in its detection engine that can let an unauthenticated attacker bypass a file action policy intended to drop SMB2/SMB3 traffic. Root cause: incorrect detection of SMB2/SMB3 files based on total file length, allowing malicious files to pass...

CVE-2019-1694

CVE-2019-1694 affects Cisco ASA/FTD TCP processing engine. The issue arises from improper handling of TCP traffic, where sending a specific sequence of packets at a high rate can cause the device to reboot, temporarily disrupting traffic (DoS). Affected products include ASA/FTD software; exploita...

CVE-2020-3298

CVE-2020-3298 affects Cisco ASA and Firepower Threat Defense (FTD) across ASA/FTD OSBF processing. The root cause is improper memory protection while handling certain OSPF packets, enabling an unauthenticated remote attacker to trigger a device reload and cause a DoS for traffic passing through t...

CVE-2020-3303

The CVE-2020-3303 issue affects Cisco ASA (Adaptive Security Appliance) and Cisco FTD (Firepower Threat Defense) software, arising from improper memory management in the IKEv1 feature. An unauthenticated, remote attacker can send crafted IKEv1 traffic to trigger a denial-of-service on affected de...

CVE-2020-3562

Cisco Firepower 2100 Series devices running Firepower Threat Defense (FTD) are affected by CVE-2020-3562, a denial-of-service vulnerability in the SSL/TLS inspection component. The flaw arises from improper input validation of certain fields in specific SSL/TLS messages, allowing an unauthenticat...

CVE-2021-34763

Cisco Firepower Management Center (FMC) Web UI vulnerabilities CVE-2021-34763: two issues—an authenticated attacker can lure a user to click a crafted link to execute arbitrary script code (XSS) and an unauthenticated attacker can exploit improper input validation to trigger an open redirect. The...

CVE-2018-0254

Cisco Firepower System Software’s detection engine is affected by CVE-2018-0254. The issue arises when Intelligent Application Bypass (IAB) with a drop percentage threshold is configured, causing incorrect counting of dropped traffic. An unauthenticated, remote attacker could exploit this to bypa...

CVE-2019-12674

CVE-2019-12674 refers to Cisco Firepower Threat Defense (FTD) Software multi-instance container escape vulnerabilities. The root cause is insufficient protections on the underlying filesystem, allowing an authenticated, local attacker to modify critical files and escape their FTD container to exe...

CVE-2021-1476

CVE-2021-1476 affects Cisco ASA/FTD CLI, where insufficient input validation in command handling allows an authenticated local attacker with admin credentials to execute arbitrary commands on the device OS with root privileges. Affected products are Cisco ASA and Firepower Threat Defense software...

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-2024-20485

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-2018-15390

CVE-2018-15390 describes a denial-of-service vulnerability in the Cisco Firepower Threat Defense (FTD) FTP inspection engine. An unauthenticated, remote attacker can send a high volume of transit traffic to trigger a low-memory condition, causing the engine to fail to release spinlocks when FTP i...

CVE-2019-12694

Cisco Firepower Threat Defense (FTD) Software has a local command-injection vulnerability in the CLI. An authenticated, local attacker with administrative privileges can exploit insufficient input validation to execute commands on the underlying OS with root privileges. The issue affects multiple...

CVE-2019-1970

CVE-2019-1970 affects Cisco Firepower Threat Defense (FTD) Software: the SSL/TLS protocol inspection engine contains errors when handling specific SSL/TLS messages, allowing an unauthenticated, remote attacker to bypass configured file policies by sending crafted HTTP packets and potentially deli...

CVE-2019-1980

CVE-2019-1980 affects Cisco Firepower Threat Defense Software (FTD), Cisco FirePOWER Services for ASA, and Cisco Firepower Management Center. Root cause: improper detection of the initial use of a protocol on a nonstandard port in the protocol inspection component, enabling an unauthenticated, re...

CVE-2021-1448

Cisco Firepower Threat Defense Software is affected by a command-injection vulnerability in the CLI that, in multi-instance mode, could allow an authenticated local attacker to run arbitrary commands with root privileges due to insufficient validation of user-supplied command arguments. The issue...

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-2019-1697

CVE-2019-1697 describes a denial-of-service vulnerability in Cisco ASA/FTD LDAP handling. An unauthenticated remote attacker can send crafted LDAP BER packets that are parsed by the device, causing it to reload. Root cause: improper parsing of LDAP packets. Affected: Cisco ASA Software and Firepo...

CVE-2019-1704

CVE-2019-1704 describes multiple vulnerabilities in the Cisco Firepower Threat Defense (FTD) Software’s SMB Protocol Preprocessor Detection Engine. The flaws could allow an unauthenticated, adjacent, or remote attacker to cause a denial of service (DoS) in FTD through the SMB preprocessor compone...

CVE-2020-3577

Cisco Firepower Threat Defense (FTD) software, specifically interfaces configured as Inline Pair or in Passive mode, is affected by a DoS in the ingress packet processing path due to insufficient validation of Ethernet frames. An unauthenticated adjacent attacker can trigger either a device login...

CVE-2021-34761

CVE-2021-34761 affects Cisco Firepower Threat Defense (FTD) Software. The issue stems from incomplete validation of user input for a specific CLI command, enabling an authenticated local attacker (with administrative credentials) to overwrite or append arbitrary data to system files with root-lev...

CVE-2024-20384

CVE-2024-20384 affects Cisco ASA (Software) and Cisco FTD, where a logic error in the Network Service Group (NSG) ACL population could let an unauthenticated, remote attacker bypass ACLs and permit traffic that should be denied. The issue arises when NSG ACLs are populated on the device, enabling...

CVE-2026-20070

CVE-2026-20070 describes a cross-site scripting (XSS) vulnerability in the VPN web services component of Cisco Secure Firewall ASA/FTD software. The issue stems from improper validation of user-supplied input in HTTP requests, enabling an unauthenticated, remote attacker to induce a browser to ex...

CVE-2026-20102

Cisco Secure Firewall ASA and Cisco Secure Firewall Threat Defense (FTD) are affected by CVE-2026-20102, a reflected XSS in the SAML 2.0 SSO feature caused by insufficient input validation of multiple HTTP parameters. An unauthenticated, remote attacker could lure a user to a malicious link to ex...

CVE-2024-20431

Cisco Firepower Threat Defense (FTD) contains a geolocation data handling flaw that can allow an unauthenticated, remote attacker to bypass geolocation-based access control and send traffic to a protected device. The issue stems from improper assignment of geolocation data within the geolocation ...

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-2024-20382

The CVE-2024-20382 issue affects Cisco ASA/FTD VPN Web Client Services. It arises from improper validation of user-supplied input to application endpoints, enabling an unauthenticated, remote attacker to perform a cross-site scripting (XSS) attack in the browser of a user visiting the affected de...

CVE-2018-15462

CVE-2018-15462 affects Cisco Firepower Threat Defense (FTD) Software. The issue is in the TCP ingress handler for data interfaces configured with management access, caused by insufficient ingress TCP rate limiting. An unauthenticated, remote attacker can send a steady stream of TCP traffic to por...

CVE-2025-20127

CVE-2025-20127 affects Cisco Secure Firewall ASA/FTD on Firepower 3100 and 4200 Series. The issue stems from TLS 1.3 cipher TLS_CHACHA20_POLY1305_SHA256, allowing an authenticated, remote attacker to exhaust resources tied to incoming TLS 1.3 connections and potentially deny new SSL/TLS or VPN co...

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-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-2026-20013

CVE-2026-20013 describes a DoS in Cisco Secure Firewall ASA/FTD products due to memory exhaustion during IKEv2 packet processing. The vulnerability stems from not freeing memory while handling IKEv2 traffic, which an unauthenticated remote attacker can trigger by sending crafted IKEv2 packets, po...

CVE-2026-20014

The CVE concerns Cisco Secure Firewall ASA Software and Cisco Secure FTD Software with an IKEv2 handling flaw. An authenticated remote attacker with valid VPN user credentials can send crafted IKEv2 packets to trigger a DoS by exhausting memory, leading to a device reload and potential impact on ...

CVE-2026-20008

Cisco reports a CVE-2026-20008 affecting a small subset of CLI commands on Cisco Secure Firewall ASA and Threat Defense (FTD) software. The vulnerability arises from unsanitized user input that can be used to craft Lua code executed on the underlying OS as root. An authenticated attacker with Adm...