Search: “secure-firewall”

Cisco Secure Firewall Threat Defense Software Snort 2 SSL/TLS Denial of Service Vulnerability

Cisco fixed an SSL certificate parsing flaw in FTD's Snort 2 engine letting unauthenticated remote attackers force detection engine restarts.

Incomplete validation of SSL certificates in the Snort 2 Detection Engine of Cisco Secure Firewall Threat Defense software allows an unauthenticated, remote attacker to send a crafted SSL connection setup request for parsing. A successful exploit restarts the Snort 2 Detection Engine unexpectedly, causing a denial of service. Cisco has released software updates, and no workarounds address the vulnerability.

Cisco Security Advisories·16:00 UTC · 1h agoAdvisory 9 sources

Cisco Secure Firewall Management Center and Secure Firewall Threat Defense Software sftunnel Vulnerabilities

Cisco fixed sftunnel flaws in Secure Firewall Management Center and Threat Defense allowing unauthenticated authentication bypass or denial of service.

Multiple vulnerabilities in Cisco Secure Firewall Management Center (FMC) and Secure Firewall Threat Defense (FTD) software could allow an unauthenticated attacker to bypass sftunnel authentication or mount a sftunnel denial-of-service attack. Cisco has released software updates addressing these vulnerabilities. No workarounds are available. The advisory is part of a grouped Cisco release.

Cisco Security Advisories·16:00 UTC · 1h agoAdvisory 6 sources

Cisco FMC CVE-2026-20079 Actively Exploited

Cisco confirms active exploitation of CVE-2026-20079, a maximum-severity authentication bypass in Secure Firewall Management Center.

Cisco has confirmed that CVE-2026-20079, a critical authentication bypass in Cisco Secure Firewall Management Center (FMC), is being actively exploited in the wild. The vulnerability carries a maximum CVSS severity, and defenders are urged to treat it as an urgent patch priority. FMC centrally manages Cisco Secure Firewall deployments, so exposure across enterprise environments is likely.

SOCRadar·updated Sep 14, 09:27 UTC · 2d ago·first Sep 10, 12:28 UTC · 6d agoExploit / PoC in the wild 11 sourcesCVE-2026-20079

Cisco Secure Firewall Management Center Software Authentication Bypass Vulnerability

Cisco warns of a critical authentication bypass in Secure Firewall Management Center that lets unauthenticated attackers execute scripts and obtain root access.

A vulnerability in the web interface of Cisco Secure Firewall Management Center (FMC) Software allows an unauthenticated, remote attacker to bypass authentication and execute script files on an affected device to obtain root access to the underlying operating system. The flaw stems from an improper system process created at boot time and is triggered via crafted HTTP requests. If the FMC management interface does not have public internet access, the attack surface is limited.

Cisco Security Advisories·Sep 9, 16:00 UTC · 7d agoAdvisory 2 sourcesCVE-2026-20079

cPanel ConfigServer Security & Firewall Vulnerability Allows Remote Attacker to Execute Arbitrary Commands

CSF 14.00–16.29 (CVE-2026-65638) lets unauthenticated attackers execute arbitrary commands via the MESSENGER service on cPanel/WHM servers; version 16.30 fixes it.

CVE-2026-65638 affects ConfigServer Security & Firewall (CSF) versions 14.00 through 16.29 and allows unauthenticated remote attackers to execute arbitrary commands through the MESSENGER service, running under the unprivileged CSF service account rather than root. Exploitation requires the non-default MESSENGER service to be enabled and a reCAPTCHA secret configured, reducing exposure for standard deployments. CSF 16.30 and later fix the flaw; administrators who cannot update immediately can set MESSENGER = 0 in /etc/csf/csf.conf as a temporary mitigation.

Cyber Security News·Sep 11, 11:28 UTC · 5d agoVulnerability 3 sourcesCVE-2026-65638

Cisco Secure Firewall Management Center Software Static Credential Vulnerability

Cisco warns of static low-privileged credentials in Secure Firewall Management Center's web interface, letting unauthenticated remote attackers log in and access sensitive data.

Cisco disclosed a vulnerability in the web interface of Secure Firewall Management Center (FMC) Software caused by the presence of static credentials for a low-privileged account. An unauthenticated remote attacker could log in to an affected device using the static account and access sensitive data within impacted systems. The attack surface is reduced when the FMC management interface does not have public internet access.

Cisco Security Advisories·Aug 11, 19:01 UTC · Aug 11, 2026Advisory

Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Remote Access SSL VPN Denial of Service Vulnerability

Cisco patched an unauthenticated remote DoS in ASA and FTD Remote Access SSL VPN that reloads devices via crafted HTTP requests.

Cisco disclosed a denial-of-service vulnerability in the Remote Access SSL VPN service of Secure Firewall ASA and FTD software. Insufficient error checking when processing HTTP requests allows an unauthenticated, remote attacker to send a crafted HTTP request that causes the affected device to reload. Cisco has released software updates addressing the flaw.

Cisco Security Advisories·Aug 11, 16:39 UTC · Aug 11, 2026Advisory

Cisco fixes vulnerability exploited to DoS its firewalls (CVE-2026-20349)

Cisco patches CVE-2026-20349, a high-severity unauthenticated DoS in ASA and FTD VPN services now added to CISA's KEV.

CVE-2026-20349 affects the Remote Access SSL VPN service in Cisco Secure Firewall ASA and FTD software, where specially crafted unauthenticated HTTP requests can cause appliances to reload, creating a denial of service. Cisco confirmed active exploitation observed in August 2026 and released hot fixes for ASA versions 9.16 through 9.24 and FTD versions 7.0 through 10.0. The flaw was added to CISA's Known Exploited Vulnerabilities catalog with a remediation deadline of August 14, 2026 for US civilian federal agencies. No workarounds or indicators of compromise are available.

Help Net Security·Aug 13, 00:00 UTC · Aug 13, 2026Exploit / PoC in the wildCVE-2026-20349

Cisco FMC Zero-Day Actively Exploited, Static Credentials Could Expose Sensitive Data

The Hacker News·Aug 6, 16:41 UTC · Aug 6, 2026Exploit / PoC in the wildCVE-2026-20316CVE-2026-20079

Hackers Actively Exploiting FortiGate Firewalls to Deploy Custom Node.js Malware

Attackers actively exploit CVE-2025-25249 in FortiGate firewalls to deploy PivotC2, a Node.js RAT that decrypts VPN and admin credentials.

SOCRadar assesses with high confidence that threat actors are actively exploiting CVE-2025-25249, a CVSS 9.8 heap buffer overflow in the cw_acd daemon (CAPWAP, UDP 5246) affecting FortiOS 6.4-7.6.3 and FortiSwitchManager 7.0.x/7.2.x. Attackers deploy fortirun.bin and PivotC2, a Node.js post-exploitation framework that harvests configurations and decrypts SSL-VPN, wireless, and admin credentials using AES-256-CBC and AES-128-GCM. Over 30,000 FortiGate IPs were scanned and 178 devices compromised, including two confirmed full intrusions of US organizations with Exchange mailbox exfiltration to Wasabi storage. STRU attributes the campaign to a Russian-speaking, financially motivated cybercrime operator.

Cyber Security News·Sep 8, 16:50 UTC · 8d agoExploit / PoC in the wildCVE-2025-252491

ZDI-26-533: Cisco Secure Firewall Management Center login.cgi Authentication Bypass Vulnerability

ZDI discloses CVE-2026-20316, a 9.8-rated unauthenticated authentication bypass in Cisco Secure Firewall Management Center login.cgi.

ZDI-26-533 describes an authentication bypass vulnerability in Cisco Secure Firewall Management Center's login.cgi that allows remote attackers to bypass authentication without any credentials. ZDI assigned a CVSS score of 9.8, and the flaw is tracked as CVE-2026-20316. As a central management plane for firewall infrastructure, compromise could enable broad policy changes.

ZDI Published Advisories·Aug 11, 05:00 UTC · Aug 11, 2026VulnerabilityCVE-2026-20316