Vulnerability database
Every flaw the U.S. government’s cybersecurity agency (CISA) has confirmed attackers are using, plus the new WordPress plugin and theme bugs published each day, sorted by what they mean for a small business. We refresh it twice a day. If you see something your website or office runs, tell us.
8 results
Jul 16, 2025A buffer overflow vulnerability in the URL parser of the zhttpd web server in Zyxel VMG8825-T50K firmware versions prior to V5.50(ABOM.5)C0 could allow an unautCVE-2025-7673 · Network & remote access · Zyxel · reported by security@zyxel.com.twCritical 9.8
A buffer overflow vulnerability in the URL parser of the zhttpd web server in Zyxel VMG8825-T50K firmware versions prior to V5.50(ABOM.5)C0 could allow an unauthenticated attacker to cause denial-of-service (DoS) conditions and potentially execute arbitrary code by sending a specially crafted HTTP request.
- Product
- VMG8825-T50K firmware
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Mar 10, 2025A post-authentication command injection vulnerability in the "DNSServer” parameter of the diagnostic function in the Zyxel VMG8825-T50K firmware version V5.50(ACVE-2024-11253 · Network & remote access · Zyxel · reported by security@zyxel.com.twHigh 7.2
A post-authentication command injection vulnerability in the "DNSServer” parameter of the diagnostic function in the Zyxel VMG8825-T50K firmware version V5.50(ABOM.8.5)C0 and earlier could allow an authenticated attacker with administrator privileges to execute operating system (OS) commands on a vulnerable device.
- Product
- VMG8825-T50K firmware
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Dec 2, 2024A buffer overflow vulnerability in the packet parser of the third-party library "libclinkc" in Zyxel VMG8825-T50K firmware versions through V5.50(ABOM.8.4)C0 coCVE-2024-8748 · Network & remote access · Zyxel · reported by security@zyxel.com.twHigh 7.5
A buffer overflow vulnerability in the packet parser of the third-party library "libclinkc" in Zyxel VMG8825-T50K firmware versions through V5.50(ABOM.8.4)C0 could allow an attacker to cause a temporary denial of service (DoS) condition against the web management interface by sending a crafted HTTP POST request to a vulnerable device.
- Product
- VMG8825-T50K firmware
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 23, 2024An improper restriction of operations within the bounds of a memory buffer in the USB file-sharing handler of the Zyxel VMG8825-T50K firmware versions through 5CVE-2024-38269 · Network & remote access · Zyxel · reported by security@zyxel.com.twMedium 4.9
An improper restriction of operations within the bounds of a memory buffer in the USB file-sharing handler of the Zyxel VMG8825-T50K firmware versions through 5.50(ABOM.8)C0 could allow an authenticated attacker with administrator privileges to cause potential memory corruptions, resulting in a thread crash on an affected device.
- Product
- VMG8825-T50K firmware
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 23, 2024An improper restriction of operations within the bounds of a memory buffer in the MAC address parser of the Zyxel VMG8825-T50K firmware versions through 5.50(ABCVE-2024-38268 · Network & remote access · Zyxel · reported by security@zyxel.com.twMedium 4.9
An improper restriction of operations within the bounds of a memory buffer in the MAC address parser of the Zyxel VMG8825-T50K firmware versions through 5.50(ABOM.8)C0 could allow an authenticated attacker with administrator privileges to cause potential memory corruptions, resulting in a thread crash on an affected device.
- Product
- VMG8825-T50K firmware
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 23, 2024An improper restriction of operations within the bounds of a memory buffer in the IPv6 address parser of the Zyxel VMG8825-T50K firmware versions through 5.50(ACVE-2024-38267 · Network & remote access · Zyxel · reported by security@zyxel.com.twMedium 4.9
An improper restriction of operations within the bounds of a memory buffer in the IPv6 address parser of the Zyxel VMG8825-T50K firmware versions through 5.50(ABOM.8)C0 could allow an authenticated attacker with administrator privileges to cause potential memory corruptions, resulting in a thread crash on an affected device.
- Product
- VMG8825-T50K firmware
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 23, 2024An improper restriction of operations within the bounds of a memory buffer in the parameter type parser of the Zyxel VMG8825-T50K firmware versions through 5.50CVE-2024-38266 · Network & remote access · Zyxel · reported by security@zyxel.com.twMedium 4.9
An improper restriction of operations within the bounds of a memory buffer in the parameter type parser of the Zyxel VMG8825-T50K firmware versions through 5.50(ABOM.8)C0 could allow an authenticated attacker with administrator privileges to cause potential memory corruptions, resulting in a thread crash on an affected device.
- Product
- VMG8825-T50K firmware
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 2, 2024A buffer overflow vulnerability in the library "libclinkc" of the Zyxel VMG8825-T50K firmware version 5.50(ABOM.8)C0 could allow an unauthenticated attacker to CVE-2024-5412 · Network & remote access · Zyxel · reported by security@zyxel.com.twHigh 7.5
A buffer overflow vulnerability in the library "libclinkc" of the Zyxel VMG8825-T50K firmware version 5.50(ABOM.8)C0 could allow an unauthenticated attacker to cause denial of service (DoS) conditions by sending a crafted HTTP request to a vulnerable device.
- Product
- VMG8825-T50K firmware
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Where this comes from: the exploited list is CISA’s Known Exploited Vulnerabilities catalog. Everything else is the whole National Vulnerability Database, where each record is published by the team that found the bug (Wordfence, Patchstack, WPScan, the vendors themselves and others); we show who. Exploit odds are FIRST’s EPSS, updated daily. Titles and categories are ours, so check the linked record before acting on a detail. For a write-up of the big ones, see our advisories. Every vendor, and every WordPress plugin and theme with a recorded flaw, also has its own page. All of it is free to reuse as JSON, CSV or RSS.
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