PT-2024-8144

Name of the Vulnerable Software and Affected Versions: Zyxel GS1900-48 switch firmware version V2.80AAHN.1C0 and earlier Description: A post-authentication command injection issue in the CGI program of the Zyxel GS1900-48 switch firmware could allow an authenticated, LAN-based attacker with...

CVE-2024-38270

An insufficient entropy vulnerability caused by the improper use of a randomness function with low entropy for web authentication tokens generation exists in the Zyxel GS1900-10HP firmware version V2.80AAZI.0C0. This vulnerability could allow a LAN-based attacker a slight chance to gain a valid...

CVE-2024-38270

The CVE-2024-38270 entry concerns Zyxel GS1900-10HP firmware v2.80(AAZI.0)C0. The root cause is the improper use of a randomness function with low entropy to generate web authentication tokens. This enables a LAN-based attacker, under the condition that multiple authenticated sessions are active,...

CVE-2024-38270

An insufficient entropy vulnerability caused by the improper use of a randomness function with low entropy for web authentication tokens generation exists in the Zyxel GS1900-10HP firmware version V2.80AAZI.0C0. This vulnerability could allow a LAN-based attacker a slight chance to gain a valid...

CVE-2024-38270: Insufficient Entropy

An insufficient entropy vulnerability caused by the improper use of a randomness function with low entropy for web authentication tokens generation exists in the Zyxel GS1900-10HP firmware version V2.80AAZI.0C0. This vulnerability could allow a LAN-based attacker a slight chance to gain a valid...

CVE-2023-6397

A null pointer dereference vulnerability in Zyxel ATP series firmware versions from 4.32 through 5.37 Patch 1 and USG FLEX series firmware versions from 4.50 through 5.37 Patch 1 could allow a LAN-based attacker to cause denial-of-service DoS conditions by downloading a crafted RAR compressed fil...

Null pointer dereference

A null pointer dereference vulnerability in Zyxel ATP series firmware versions from 4.32 through 5.37 Patch 1 and USG FLEX series firmware versions from 4.50 through 5.37 Patch 1 could allow a LAN-based attacker to cause denial-of-service DoS conditions by downloading a crafted RAR compressed fil...

CVE-2023-6397

A null pointer dereference vulnerability in Zyxel ATP series firmware versions from 4.32 through 5.37 Patch 1 and USG FLEX series firmware versions from 4.50 through 5.37 Patch 1 could allow a LAN-based attacker to cause denial-of-service DoS conditions by downloading a crafted RAR compressed fil...

CVE-2023-6397

A null pointer dereference vulnerability in Zyxel ATP series firmware versions from 4.32 through 5.37 Patch 1 and USG FLEX series firmware versions from 4.50 through 5.37 Patch 1 could allow a LAN-based attacker to cause denial-of-service DoS conditions by downloading a crafted RAR compressed fil...

CVE-2023-6397: NULL Pointer Dereference

A null pointer dereference vulnerability in Zyxel ATP series firmware versions from 4.32 through 5.37 Patch 1 and USG FLEX series firmware versions from 4.50 through 5.37 Patch 1 could allow a LAN-based attacker to cause denial-of-service DoS conditions by downloading a crafted RAR compressed fil...

CVE-2023-35139

A cross-site scripting XSS vulnerability in the CGI program of the Zyxel ATP series firmware versions 5.10 through 5.37, USG FLEX series firmware versions 5.00 through 5.37, USG FLEX 50W series firmware versions 5.10 through 5.37, USG20W-VPN series firmware versions 5.10 through 5.37, and VPN...

CVE-2023-28768

Improper frame handling in the Zyxel XGS2220-30 firmware version V4.80ABXN.1, XMG1930-30 firmware version V4.80ACAR.1, and XS1930-10 firmware version V4.80ABQE.1 could allow an unauthenticated LAN-based attacker to cause denial-of-service DoS conditions by sending crafted frames to an affected...

CVE-2023-28768

The CVE-2023-28768 entry concerns Zyxel switches (XGS2220-30, XMG1930-30, XS1930-10) with firmware version 4.80… that mishandles frames, enabling an unauthenticated LAN-based attacker to trigger a denial-of-service by sending crafted frames to the affected switch. Root cause: improper/insufficien...

CVE-2023-28768

Improper frame handling in the Zyxel XGS2220-30 firmware version V4.80ABXN.1, XMG1930-30 firmware version V4.80ACAR.1, and XS1930-10 firmware version V4.80ABQE.1 could allow an unauthenticated LAN-based attacker to cause denial-of-service DoS conditions by sending crafted frames to an affected...

Zyxel USG < 5.37 / ATP < 5.37 / VPN < 5.37 Multiple Vulnerabilities

Firmware version of the Zyxel USG, ATP, VPN is less than 5.37. This Zyxel device firmware is affected by multiple vulnerabilities: - A command injection vulnerability in the Free Time WiFi hotspot feature of some firewall versions could allow an unauthenticated, LAN-based attacker to execute some...

CVE-2023-33012

A command injection vulnerability in the configuration parser of the Zyxel ATP series firmware versions 5.10 through 5.36 Patch 2, USG FLEX series firmware versions 5.00 through 5.36 Patch 2, USG FLEX 50W series firmware versions 5.10 through 5.36 Patch 2, USG20W-VPN series firmware versions 5.10...

CVE-2023-34138

A command injection vulnerability in the hotspot management feature of the Zyxel ATP series firmware versions 4.60 through 5.36 Patch 2, USG FLEX series firmware versions 4.60 through 5.36 Patch 2, USG FLEX 50W series firmware versions 4.60 through 5.36 Patch 2, USG20W-VPN series firmware version...

CVE-2023-34141

A command injection vulnerability in the access point AP management feature of the Zyxel ATP series firmware versions 5.00 through 5.36 Patch 2, USG FLEX series firmware versions 5.00 through 5.36 Patch 2, USG FLEX 50W series firmware versions 5.00 through 5.36 Patch 2, USG20W-VPN series firmware...

Format string

A format string vulnerability in the Zyxel ATP series firmware versions 5.10 through 5.36 Patch 2, USG FLEX series firmware versions 5.00 through 5.36 Patch 2, USG FLEX 50W series firmware versions 5.10 through 5.36 Patch 2, USG20W-VPN series firmware versions 5.10 through 5.36 Patch 2, and VPN...

Command injection

A command injection vulnerability in the hotspot management feature of the Zyxel ATP series firmware versions 4.60 through 5.36 Patch 2, USG FLEX series firmware versions 4.60 through 5.36 Patch 2, USG FLEX 50W series firmware versions 4.60 through 5.36 Patch 2, USG20W-VPN series firmware version...