Security Affairs

DECEMBER 27, 2024

An unauthenticated attacker can exploit this vulnerability to reboot the firewall by sending a malicious packet through its data plane. Repeated exploitation forces the firewall into maintenance mode. Repeated attempts to trigger this condition will cause the firewall to enter maintenance mode.” ” reads the advisory.

DNS 114

DNS Firewall Spyware Software 114

Security Affairs

NOVEMBER 16, 2024

Palo Alto Networks confirmed active exploitation of a zero-day in its PAN-OS firewall and released new indicators of compromise (IoCs). Last week, Palo Alto Networks warned customers to limit access to their next-gen firewall management interface due to a potential remote code execution vulnerability (CVSSv4.0 Base Score: 9.3)

Firewall 127

Firewall Internet Internet VPN 127

Security Affairs

OCTOBER 29, 2024

“An improper access control vulnerability has been identified in the SonicWall SonicOS management access and SSLVPN, potentially leading to unauthorized resource access and in specific conditions, causing the firewall to crash.” ” Prior to August 2024, Fog and Akira ransomware attacks targeted a variety of firewall brands.

VPN 130

VPN Ransomware Firewall Internet 130

Security Affairs

NOVEMBER 8, 2024

Palo Alto Networks warns customers to restrict access to their next-generation firewalls because of a potential RCE flaw in the PAN-OS management interface. Palo Alto Networks warns customers to limit access to their next-gen firewall management interface due to a potential remote code execution vulnerability in PAN-OS.

Firewall 117

Firewall Authentication Internet Internet 117

Security Affairs

JUNE 17, 2022

China-linked threat actors exploited the zero-day flaw CVE-2022-1040 in Sophos Firewall weeks before it was fixed by the security vendor. On March 25, Sophos announced to have fixed the authentication bypass vulnerability, tracked as CVE-2022-1040, that resides in the User Portal and Webadmin areas of Sophos Firewall.

Firewall 145

Firewall DNS Authentication Malware 145

Security Affairs

JANUARY 15, 2025

. “The build date coded in the last number block also points to the same date range: None of the firewall firmwares examined had been compiled after September 14, 2022.” ” reported Heise Security. We can exclude the circumstance that the attackers may have compromised Fortinet.

VPN 131

VPN Passwords Firewall Firmware 131

Security Affairs

APRIL 11, 2024

Palo Alto Networks fixed several vulnerabilities in its PAN-OS operating system, including 3 issues that can trigger a DoS condition on its firewalls. Palo Alto Networks released security updates to address several high-severity vulnerabilities in its PAN-OS operating system. ” reads the advisory.

Firewall 138

Firewall Software Engineering Authentication 138

Security Affairs

JANUARY 31, 2021

Experts from Great Firewall Report analyzed recent upgrades to China’s Great Firewall and revealed that it can be circumvented. Members of the Great Firewall Report group have analyzed the recent improvement implemented for China’s Great Firewall censorship system and revealed that it is possible to bypass it.

Firewall 144

Firewall Surveillance Internet Internet 144

Security Affairs

AUGUST 26, 2024

SonicWall addressed a critical flaw in its firewalls that could allow attackers to achieve unauthorized access to the devices. SonicWall has released security updates to address a critical vulnerability, tracked as CVE-2024-40766 (CVSS score: 9.3), in its firewalls. 13o Gen 6 Firewalls – 6.5.2.8-2n

Firewall 126

Firewall Firmware Malware Internet 126

Security Affairs

MAY 26, 2022

Zyxel addressed multiple vulnerabilities impacting many of its products, including APs, AP controllers, and firewalls. Zyxel has released security updates to address multiple vulnerabilities affecting multiple products, including firewall, AP, and AP controller products. Follow me on Twitter: @securityaffairs and Facebook.

Firewall 141

Firewall Authentication VPN Cyber Attacks 141

Security Affairs

DECEMBER 15, 2023

Security flaws in Netgate pfSense firewall solution can potentially lead to arbitrary code execution on vulnerable devices. pfSense is a popular open-source firewall solution maintained by Netgate, researchers discovered multiple security issues affecting it. ” reads the analysis published by SonarSource.

Firewall 141

Firewall Phishing Authentication Hacking 141

Security Affairs

FEBRUARY 27, 2024

Taiwanese vendor Zyxel warns of security vulnerabilities in its firewalls and access points, including a remote code execution flaw. Taiwanese networking vendor Zyxel addressed four vulnerabilities, respectively tracked as CVE-2023-6397 , CVE-2023-6398 , CVE-2023-6399 , and CVE-2023-6764 , in its firewalls and access points.

Firewall 138

Firewall VPN Authentication Hacking 138

Security Affairs

JANUARY 15, 2024

Researchers from Bishop Fox found over 178,000 SonicWall next-generation firewalls (NGFW) publicly exploitable. Researchers from Bishop Fox used BinaryEdge source data to find SonicWall firewalls with management interfaces exposed to the internet.

Firewall 144

Firewall Hacking Firmware Internet 144

Security Affairs

SEPTEMBER 19, 2023

Researchers discovered approximately 12,000 Juniper SRX firewalls and EX switches vulnerable to a recently disclosed CVE-2023-36845 RCE flaw. VulnCheck researchers discovered approximately 12,000 internet-exposed Juniper SRX firewalls and EX switches that are vulnerable to the recently disclosed remote code execution flaw CVE-2023-36845.

Firewall 142

Firewall Internet Internet Authentication 142

Security Affairs

DECEMBER 9, 2022

Claroty researchers devised a technique for bypassing the web application firewalls (WAF) of several vendors. Researchers at industrial and IoT cybersecurity firm Claroty devised an attack technique for bypassing the web application firewalls (WAF) of several industry-leading vendors. the report concludes. Pierluigi Paganini.

Firewall 143

Firewall Wireless IoT Hacking 143

Security Affairs

FEBRUARY 19, 2025

Palo Alto Networks warns that the vulnerability CVE-2025-0111 is actively exploited with two other flaws to compromise PAN-OS firewalls. Palo Alto Networks warns that threat actors are chaining the vulnerability CVE-2025-0111 with two other vulnerabilities, tracked as CVE-2025-0108 with CVE-2024-9474 , to compromise PAN-OS firewalls.

Firewall 106

Firewall Authentication Architecture Internet 106

Security Affairs

DECEMBER 3, 2023

Taiwanese vendor Zyxel addressed tens of vulnerabilities in its firewalls and access points. CVE-2023-35139 – A cross-site scripting (XSS) vulnerability in the CGI program of some firewall versions could allow an unauthenticated LAN-based attacker to store malicious scripts in a vulnerable device.

Firewall 131

Firewall Authentication VPN Cyber Attacks 131

Security Affairs

JUNE 24, 2021

Networking equipment giant Zyxel warns customers of a series of attacks that have been targeting some of its enterprise firewall and VPN devices. Networking equipment vendor Zyxel warned its customers of a series of attacks that have been targeting some of its enterprise firewall and VPN server solutions. Pierluigi Paganini.

VPN 144

VPN Firewall Firmware Authentication 144

Security Affairs

MAY 1, 2024

Infoblox researchers observed China-linked threat actors Muddling Meerkat using sophisticated DNS activities since 2019 to bypass traditional security measures and probe networks worldwide. The experts noticed a spike in activity observed in September 2023.

DNS 142

DNS Firewall DDOS Hacking 142

Security Affairs

NOVEMBER 15, 2024

The vulnerabilities reside in the Palo Alto Networks’ Expedition solution, which is a migration tool designed to help organizations move configurations from other firewall platforms (like Check Point, Cisco, and others) to Palo Alto’s PAN-OS. reads the advisory.

Firewall 110

Firewall Passwords Authentication Phishing 110

Security Affairs

OCTOBER 9, 2024

Palo Alto fixed critical flaws in PAN-OS firewalls, warning that attackers could chain these vulnerabilities to hijack the devices. Palo Alto Networks addressed multiple vulnerabilities that an attacker can chain to hijack PAN-OS firewalls. ” reads the advisory. ” reads the advisory.

Firewall 129

Firewall Passwords Authentication Phishing 129

Security Affairs

OCTOBER 24, 2024

Cisco addressed multiple vulnerabilities in Adaptive Security Appliance (ASA), Secure Firewall Management Center (FMC), and Firepower Threat Defense (FTD) products, including an actively exploited flaw tracked as CVE-2024-20481. The vulnerability CVE-2024-20481 (CVSS score of 5.8)

VPN 124

VPN Firewall Passwords Software 124

Security Affairs

MARCH 29, 2024

Cisco warns customers of password-spraying attacks that have been targeting Remote Access VPN (RAVPN) services of Cisco Secure Firewall devices. Cisco is warning customers of password-spraying attacks that have been targeting Remote Access VPN (RAVPN) services configured on Cisco Secure Firewall devices.

Firewall 132

Firewall Passwords VPN Authentication 132

Security Affairs

DECEMBER 13, 2023

Sophos backports the patch for CVE-2022-3236 for end-of-life (EOL) firewall firmware versions due to ongoing attacks exploiting the issue. The security firm reported that this vulnerability is being used in attacks against a small set of specific organizations, primarily in South Asia. reads the advisory. “A reads the advisory.

Firmware 132

Firmware Firewall Internet Internet 132

Security Affairs

JANUARY 12, 2024

Juniper Networks fixed a critical pre-auth remote code execution (RCE) flaw, tracked as CVE-2024-21591, in its SRX Series firewalls and EX Series switches. ” reads the advisory published by the vendor. “This issue is caused by use of an insecure function allowing an attacker to overwrite arbitrary memory.”

Firewall 135

Firewall Hacking Software Information Security 135

Security Affairs

NOVEMBER 7, 2024

CVE-2024-5910 – In July, Palo Alto Networks released security updates to address five security flaws impacting its products, the most severe issue, tracked as CVE-2024-5910 (CVSS score: 9.3), is a missing authentication for a critical function in Palo Alto Networks Expedition that can lead to an admin account takeover.

Firewall 126

Firewall Authentication Accountability Risk 126

Security Affairs

APRIL 19, 2025

. “It is important to note that even fully patched firewall devices may still become compromised if accounts use poor password hygiene.” Follow me on Twitter: @securityaffairs and Facebook and Mastodon Pierluigi Paganini ( SecurityAffairs hacking,Remote Code Execution)

Passwords 107

Passwords VPN Firewall Accountability 107

Security Affairs

AUGUST 28, 2023

Researchers published a PoC exploit code for Juniper SRX firewall flaws that can be chained to gain RCE in Juniper’s JunOS. watchTowr Labs security researchers published a proof-of-concept exploit (PoC) exploit code for vulnerabilities in Juniper SRX firewalls. In mid-August, Juniper addressed four medium-severity (CVSS 5.3)

Firewall 98

Firewall Authentication Hacking Information Security 98

Security Affairs

APRIL 24, 2024

Nation-state actor UAT4356 has been exploiting two zero-days in ASA and FTD firewalls since November 2023 to breach government networks.

Firewall 133

Firewall Government VPN Authentication 133

Security Affairs

JUNE 1, 2023

Threat actors are actively exploiting a command injection flaw, tracked as CVE-2023-28771, in Zyxel firewalls to install malware. Threat actors are actively attempting to exploit a command injection vulnerability, tracked as CVE-2023-28771 , that impacts Zyxel firewalls. in its firewall devices.

Firewall 98

Firewall Firmware VPN DDOS 98

Security Affairs

MAY 18, 2025

“While inverters are built to allow remote access for updates and maintenance, the utility companies that use them typically install firewalls to prevent direct communication back to China.” experts who strip down equipment hooked up to grids to check for security issues, the two people said.”

Energy and Utilities 145

Energy and Utilities Manufacturing Government Hacking 145

Security Affairs

JUNE 12, 2023

Fortinet released security updates to fix a critical security flaw in its FortiGate firewalls that lead to remote code execution. Fortinet has released security patches to address a critical security vulnerability, tracked as CVE-2023-27997, in its FortiGate firewalls. ” reads the advisory.

Firewall 98

Firewall VPN Authentication Media 98

Krebs on Security

AUGUST 27, 2024

The advisory placed much of the blame on Versa customers who “failed to implement system hardening and firewall guidelines…leaving a management port exposed on the internet that provided the threat actors with initial access.” Versa said the weakness allows attackers to upload a file of their choosing to vulnerable systems.

Internet 343

Internet Internet Technology Engineering 343

Security Affairs

DECEMBER 3, 2024

Cybersecurity and Infrastructure Security Agency (CISA) adds ProjectSend, North Grid Proself, and Zyxel firewalls bugs to its Known Exploited Vulnerabilities catalog. are vulnerable to XXE attacks, allowing unauthenticated attackers to read server files with account data.

Firewall 113

Firewall Authentication Accountability Firmware 113

Security Affairs

NOVEMBER 2, 2024

Sophos used custom implants to monitor China-linked thret actors targeting firewall zero-days in a years-long battle. Improved operational security, including disrupting firewall telemetry to hinder detection and minimize their digital footprint.

Firmware 122

Firmware Government Firewall Malware 122

Security Affairs

JULY 3, 2023

Researchers reported that there are 490,000 Fortinet firewalls exposing SSL VPN interfaces on the internet, and roughly 69% of them are still vulnerable to CVE-2023-27997.

Firewall 98

Firewall VPN Firmware Internet 98

Security Affairs

DECEMBER 19, 2024

To mitigate the exposure to these threats, users are recommended to change default credentials, use strong passwords, review access logs, employ firewalls and IDS/IPS, and keep firmware up-to-date. Below are actions recommended by Juniper Networks: Strengthen Security Practices : Change default credentials on all SSRs.

DDOS 67

DDOS Firmware Firewall Passwords 67