Nebula Fwa710 Firmware
Monthly
A null pointer dereference vulnerability in the IP settings CGI program of the Zyxel VMG3625-T50B firmware versions through 5.50(ABPM.9.6)C0 and the Zyxel WX3100-T0 firmware versions through 5.50(ABVL.4.8)C0 could allow an authenticated attacker with administrator privileges to trigger a denial-of-service (DoS) condition by sending a crafted HTTP request. [CVSS 4.9 MEDIUM]
A null pointer dereference vulnerability in the account settings CGI program of the Zyxel VMG3625-T50B firmware versions through 5.50(ABPM.9.6)C0 and the Zyxel WX3100-T0 firmware versions through 5.50(ABVL.4.8)C0 could allow an authenticated attacker with administrator privileges to trigger a denial-of-service (DoS) condition by sending a crafted HTTP request. [CVSS 4.9 MEDIUM]
A null pointer dereference vulnerability in the certificate downloader CGI program of the Zyxel VMG3625-T50B firmware versions through 5.50(ABPM.9.6)C0 and the Zyxel WX3100-T0 firmware versions through 5.50(ABVL.4.8)C0 could allow an authenticated attacker with administrator privileges to trigger a denial-of-service (DoS) condition by sending a crafted HTTP request. [CVSS 4.9 MEDIUM]
Slowloris-style denial of service in Zyxel DX3301-T0 firmware 5.50(ABVY.6.3)C0 and earlier, with the vendor advisory covering a broader family of Zyxel 4G/5G NR CPE, DSL/Ethernet CPE, fiber ONT, security router and wireless extender models, lets unauthenticated remote attackers tie up the embedded HTTP web-management service by holding many partial connections open. The result is temporary unavailability or degradation of the web GUI only - data-plane networking services keep running - so impact is availability-limited rather than a full device outage. No public exploit identified at time of analysis, and EPSS is only 0.08% (24th percentile); the 7.5 base score reflects network reachability, while our assessed vector (A:L) captures the temporary, management-plane-only disruption.
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). Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
The buffer overflow vulnerability in the DX3300-T1 firmware version V5.50(ABVY.4)C0 could allow an authenticated local attacker to cause denial of service (DoS) conditions by executing the CLI. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
A null pointer dereference vulnerability in the IP settings CGI program of the Zyxel VMG3625-T50B firmware versions through 5.50(ABPM.9.6)C0 and the Zyxel WX3100-T0 firmware versions through 5.50(ABVL.4.8)C0 could allow an authenticated attacker with administrator privileges to trigger a denial-of-service (DoS) condition by sending a crafted HTTP request. [CVSS 4.9 MEDIUM]
A null pointer dereference vulnerability in the account settings CGI program of the Zyxel VMG3625-T50B firmware versions through 5.50(ABPM.9.6)C0 and the Zyxel WX3100-T0 firmware versions through 5.50(ABVL.4.8)C0 could allow an authenticated attacker with administrator privileges to trigger a denial-of-service (DoS) condition by sending a crafted HTTP request. [CVSS 4.9 MEDIUM]
A null pointer dereference vulnerability in the certificate downloader CGI program of the Zyxel VMG3625-T50B firmware versions through 5.50(ABPM.9.6)C0 and the Zyxel WX3100-T0 firmware versions through 5.50(ABVL.4.8)C0 could allow an authenticated attacker with administrator privileges to trigger a denial-of-service (DoS) condition by sending a crafted HTTP request. [CVSS 4.9 MEDIUM]
Slowloris-style denial of service in Zyxel DX3301-T0 firmware 5.50(ABVY.6.3)C0 and earlier, with the vendor advisory covering a broader family of Zyxel 4G/5G NR CPE, DSL/Ethernet CPE, fiber ONT, security router and wireless extender models, lets unauthenticated remote attackers tie up the embedded HTTP web-management service by holding many partial connections open. The result is temporary unavailability or degradation of the web GUI only - data-plane networking services keep running - so impact is availability-limited rather than a full device outage. No public exploit identified at time of analysis, and EPSS is only 0.08% (24th percentile); the 7.5 base score reflects network reachability, while our assessed vector (A:L) captures the temporary, management-plane-only disruption.
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). Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
The buffer overflow vulnerability in the DX3300-T1 firmware version V5.50(ABVY.4)C0 could allow an authenticated local attacker to cause denial of service (DoS) conditions by executing the CLI. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.