CVE-2026-20336

Cisco Secure ASA, Secure Firewall Threat Defense (FTD), and Secure Firewall Management Center (FMC) Software are affected by resource lifetime management vulnerabilities (CWE-664), identified through Cisco's internal security review as part of a proactive hardening release. The CVSS 3.1 score is ...

CVE-2026-20249

A logic error in the IKEv2 certificate authentication phase of Cisco Secure Firewall ASA and FTD Software allows an unauthenticated, remote attacker to send a crafted certificate during IKEv2 VPN connection setup, crashing the IKEv2 process and causing an unexpected device reload (DoS). The vulne...

CVE-2026-20350

CVE-2026-20350 affects the web-based management interface of Cisco ThousandEyes Virtual Appliance , where improper validation of user-supplied input allows an authenticated attacker with administrative credentials to inject arbitrary operating system commands by saving configuration details conta...

CVE-2026-76409

Cisco Nexus Dashboard is affected by an improper limitation of a pathname vulnerability (CWE-22), discovered during an internal security review and addressed in a software hardening release published in September 2026. The vulnerability is rated CVSS 3.1: 8.8 (HIGH) , with a vector of AV:N/AC:L/P...

CVE-2026-20340

Cisco Secure Firewall Management Center (FMC) Software is affected by an unsecured deserialization vulnerability in web-management user-controlled data. An authenticated remote attacker with at least the Security Analyst (read-only) role can send a crafted HTTP payload to the device, save it, and...

CVE-2026-20335

CVE-2026-20335 affects Cisco Secure Adaptive Security Appliance (ASA) Software , Secure Firewall Threat Defense (FTD) Software , and Secure Firewall Management Center (FMC) Software . The vulnerability involves incorrect calculation issues classified under CWE-682 , discovered during an internal ...

CVE-2026-20295

CVE-2026-20295 affects the sftunnel inter-device communication protocol in Cisco Secure Firewall Management Center (FMC) and Cisco Secure Firewall Threat Defense (FTD) Software. The root cause is improper management of memory resources during sftunnel TLS connection setup , allowing an unauthenti...

CVE-2026-20250

Cisco Secure Firewall ASA and FTD Software for 3100 Series and 4200 Series devices are affected by a Denial of Service vulnerability in Datagram TLS (DTLS) message handling . The root cause is improper resource management when processing certain DTLS messages. An unauthenticated, remote attacker ...

CVE-2026-20176

Cisco Identity Services Engine (ISE) contains a remote code execution vulnerability caused by insufficient validation of user-supplied input in an HTTP endpoint. An attacker with high-privileged administrative credentials can send a crafted HTTP request to achieve system-level access on the under...

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-2026-20242

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-2026-20237

Cisco Identity Services Engine (ISE) and Cisco ISE Passive Identity Connector (ISE-PIC) are affected by improper input validation vulnerabilities (CWE-20) identified during an internal security review. Cisco released a software hardening release to address these issues. The CVSS 3.1 score is 9.1 ...

CVE-2026-76423

CVE-2026-76423 affects the REST API web service in Cisco ISE and Cisco ISE-PIC , where insufficient authorization checks allow an unauthenticated remote attacker to gain administrative access by sending a crafted HTTP request to the exposed REST API port. A successful exploit permits the attacker...

CVE-2026-20130

Cisco Identity Services Engine (ISE) and Cisco ISE Passive Identity Connector (ISE-PIC) are affected by multiple internally discovered vulnerabilities grouped under CWE-74 (Improper Neutralization of Special Elements), addressed as part of a software hardening release following an internal securi...

CVE-2026-20361

CVE-2026-20361 affects Cisco Nexus Dashboard and involves a SQL injection vulnerability (CWE-89) discovered internally during a comprehensive security review. The issue is addressed as part of a software hardening release (September 2026). The CNA-assigned CVSS 3.1 score is 8.8 (HIGH) , with a ne...

CVE-2026-20192

CVE-2026-20192 affects Cisco Identity Services Engine (ISE) and Cisco ISE Passive Identity Connector (ISE-PIC) , stemming from improper access control issues (CWE-284) identified during an internal security review. The CVSS 3.1 base score is 10.0 (Critical) , with a network attack vector, low com...

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-2026-20325

CVE-2026-20325 affects Cisco Nexus Dashboard and is classified as a CWE-77 (Improper Neutralization of Special Elements Used in a Command Injection). It was identified during an internal security review by the Cisco Nexus Dashboard engineering team, which resulted in a software hardening release ...

CVE-2026-92808

CVE-2026-92808 is a server-side request forgery (SSRF) vulnerability in the UnifiedLogin service of Altium Enterprise Server . An unauthenticated network attacker can force the server to issue outbound HTTP requests to arbitrary destinations, including internal services reachable only from the se...

CVE-2026-20194

Cisco Identity Services Engine (ISE) and Cisco ISE Passive Identity Connector (ISE-PIC) are affected by a vulnerability classified as CWE-669 (Incorrect Resource Transfer Between Spheres) , discovered during an internal security review. The flaw permits high-privilege network attackers to achieve...