Cisco Secure Firewall Management Center Software sftunnel Authentication Bypass (cisco-sa-fmcftd-sftun-multivulns-WGVHOrN3)

According to its self-reported version, Cisco Secure Firewall Management Center FMC is affected by multiple vulnerabilities. - A denial of service DoS vulnerability exists in the sftunnel functionality due to improper memory management. An unauthenticated, remote attacker can exploit this issue,...

CVE-2026-20324

A vulnerability in the sftunnel inter-device communication protocol of Cisco Secure Firewall Management Center FMC Software could allow an authenticated, remote attacker to execute arbitrary commands as root. This vulnerability exists because a registered sftunnel peer has incorrect permissions t...

CVE-2026-20242

A vulnerability in the External Database Access feature of Cisco Secure Firewall Management Center FMC Software could allow an unauthenticated, remote attacker to execute arbitrary commands as root on an affected device. This vulnerability is due to insecure deserialization of a user-supplied Jav...

CVE-2026-20344

Cisco Secure Firewall Management Center (FMC) Software contains a SQL injection vulnerability in its web-based management interface, caused by insufficient validation of user-supplied input. An authenticated remote attacker holding the Security Approver , Access Admin , or Network Admin role can ...

CVE-2026-20343

A vulnerability in a critical API of Cisco Secure Firewall Management Center (FMC) Software arises because the API lacks authentication . An unauthenticated, remote attacker can exploit it by repeatedly invoking the API, potentially downloading sensitive files that should be restricted and consum...

CVE-2026-20341

CVE-2026-20341 is a critical deserialization flaw (CVSS 9.1) in the sftunnel inter-device communication protocol of Cisco Secure FMC Software . The root cause is unsecured deserialization of untrusted data over the sftunnel management connection. An authenticated remote attacker holding valid adm...

CVE-2026-20341 Cisco Secure Firewall Management Center Software sftunnel Deserialization Root Command Execution Vulnerability

A vulnerability in the sftunnel inter-device communication protocol of Cisco Secure FMC Software could allow an authenticated, remote attacker to obtain root privileges. This vulnerability is due to unsecured deserialization of untrusted data over the sftunnel management connection. An attacker...

CVE-2026-20242 Cisco Secure Firewall Management Center Software Java Deserialization Remote Code Execution Vulnerability

A vulnerability in the External Database Access feature of Cisco Secure Firewall Management Center FMC Software could allow an unauthenticated, remote attacker to execute arbitrary commands as root on an affected device. This vulnerability is due to insecure deserialization of a user-supplied Jav...

CVE-2026-20242 Cisco Secure Firewall Management Center Software Java Deserialization Remote Code Execution Vulnerability

A vulnerability in the External Database Access feature of Cisco Secure Firewall Management Center FMC Software could allow an unauthenticated, remote attacker to execute arbitrary commands as root on an affected device. This vulnerability is due to insecure deserialization of a user-supplied Jav...

EUVD-2026-81109

A vulnerability in the External Database Access feature of Cisco Secure Firewall Management Center FMC Software could allow an unauthenticated, remote attacker to execute arbitrary commands as root on an affected device. This vulnerability is due to insecure deserialization of a user-supplied Jav...

CVE-2026-20242

CVE-2026-20242 affects the External Database Access feature of Cisco Secure Firewall Management Center (FMC) Software . The root cause is insecure deserialization of a user-supplied Java byte stream. An unauthenticated, remote attacker who controls a host in the configured external database acces...

CVE-2026-20324 Cisco Secure Firewall Management Center sftunnel Root Arbitrary Code Exectution Vulnerability

A vulnerability in the sftunnel inter-device communication protocol of Cisco Secure Firewall Management Center FMC Software could allow an authenticated, remote attacker to execute arbitrary commands as root. This vulnerability exists because a registered sftunnel peer has incorrect permissions t...

CVE-2026-20324 Cisco Secure Firewall Management Center sftunnel Root Arbitrary Code Exectution Vulnerability

A vulnerability in the sftunnel inter-device communication protocol of Cisco Secure Firewall Management Center FMC Software could allow an authenticated, remote attacker to execute arbitrary commands as root. This vulnerability exists because a registered sftunnel peer has incorrect permissions t...

EUVD-2026-81103

A vulnerability in the sftunnel inter-device communication protocol of Cisco Secure Firewall Management Center FMC Software could allow an authenticated, remote attacker to execute arbitrary commands as root. This vulnerability exists because a registered sftunnel peer has incorrect permissions t...

CVE-2026-20324

CVE-2026-20324 is a CRITICAL (CVSS 9.9) vulnerability in the sftunnel inter-device communication protocol of Cisco Secure Firewall Management Center (FMC) Software . The root cause is that a registered sftunnel peer holds incorrect permissions, allowing it to write an arbitrary file to any locati...

CVE-2026-20329 Cisco Secure Adaptive Security Appliance Software, Secure Firewall Threat Defense Software and Secure Firewall Management Center Software Hardening Release - Exceptional Conditions Handling Vulnerabilities

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Adaptive Security Appliance Software, Cisco Secure Firewall Threat Defense Software and Cisco Secure Firewall Management Center Software engineering team has conducted a comprehensive internal securi...

Cisco Secure Firewall Management Center Software Vulnerabilities

Multiple vulnerabilities in Cisco Secure Firewall Management Center FMC Software could allow a remote attacker to gain root access, download sensitive files, perform a SQL injection attack, or cause a denial of service DoS condition. For more information about these vulnerabilities, see the Detai...

Cisco Secure Firewall Management Center Software Java Deserialization Remote Code Execution Vulnerability

A vulnerability in the External Database Access feature of Cisco Secure Firewall Management Center FMC Software could allow an unauthenticated, remote attacker to execute arbitrary commands as root on an affected device. This vulnerability is due to insecure deserialization of a user-supplied Jav...

Cisco Secure Firewall Management Center Software sftunnel Root Arbitrary Code Execution Vulnerability

A vulnerability in the sftunnel inter-device communication protocol of Cisco Secure Firewall Management Center FMC Software could allow an authenticated, remote attacker to execute arbitrary commands as root. This vulnerability exists because a registered sftunnel peer has incorrect permissions t...

Cisco Secure Firewall Management Center Software Vulnerabilities

Multiple vulnerabilities in Cisco Secure Firewall Management Center FMC Software could allow a remote attacker to gain root access and perform session forgery or session impersonation. For more information about these vulnerabilities, see the Details "details" section of this advisory. Cisco has...