Sliver has DNS C2 OTP Bypass that Allows Unauthenticated Session Flooding and Denial of Service

Summary The DNS C2 listener accepts unauthenticated TOTP bootstrap messages and allocates server-side DNS sessions without validating OTP values, even when EnforceOTP is enabled. Because sessions are stored without a cleanup/expiry path in this flow, an unauthenticated remote actor can repeatedly...

CVE-2020-37119

Nsauditor 3.0.28 and 3.2.1.0 contains a buffer overflow vulnerability in the DNS Lookup tool that allows attackers to execute arbitrary code by overwriting memory. Attackers can craft a malicious DNS query payload to trigger a three-byte overwrite, bypass ASLR, and execute shellcode through a...

CVE-2025-11730

A post‑authentication command injection vulnerability in the Dynamic DNS DDNS configuration CLI command in Zyxel ATP series firmware versions from V5.35 through V5.41, USG FLEX series firmware versions from V5.35 through V5.41, USG FLEX 50W series firmware versions from V5.35 through V5.41, and...

CVE-2020-37119

CVE-2020-37119 affects Nsauditor 3.0.28 and 3.2.1.0. A buffer overflow in the DNS Lookup tool allows an attacker to overwrite memory with a crafted DNS query payload, bypass ASLR, and execute shellcode. Reported exploit details indicate a three-byte overwrite, with potential for arbitrary code ex...

EUVD-2020-31047

Nsauditor 3.0.28 and 3.2.1.0 contains a buffer overflow vulnerability in the DNS Lookup tool that allows attackers to execute arbitrary code by overwriting memory. Attackers can craft a malicious DNS query payload to trigger a three-byte overwrite, bypass ASLR, and execute shellcode through a...

CVE-2025-11730

A post‑authentication command injection vulnerability in the Dynamic DNS DDNS configuration CLI command in Zyxel ATP series firmware versions from V5.35 through V5.41, USG FLEX series firmware versions from V5.35 through V5.41, USG FLEX 50W series firmware versions from V5.35 through V5.41, and...

CVE-2025-11730

A post‑authentication command injection vulnerability in the Dynamic DNS DDNS configuration CLI command in Zyxel ATP series firmware versions from V5.35 through V5.41, USG FLEX series firmware versions from V5.35 through V5.41, USG FLEX 50W series firmware versions from V5.35 through V5.41, and...

EUVD-2025-206867

A post‑authentication command injection vulnerability in the Dynamic DNS DDNS configuration CLI command in Zyxel ATP series firmware versions from V5.35 through V5.41, USG FLEX series firmware versions from V5.35 through V5.41, USG FLEX 50W series firmware versions from V5.35 through V5.41, and...

CVE-2025-11730

CVE-2025-11730 is a post-authentication command-injection vulnerability in Zyxel DDNS CLI across Zyxel ATP series (V5.35–V5.41), USG FLEX series (V5.35–V5.41), USG FLEX 50(W) (V5.35–V5.41), and USG20(W)-VPN (V5.35–V5.41). The issue allows an authenticated administrator to execute OS commands on a...

CVE-2025-11730

A post‑authentication command injection vulnerability in the Dynamic DNS DDNS configuration CLI command in Zyxel ATP series firmware versions from V5.35 through V5.41, USG FLEX series firmware versions from V5.35 through V5.41, USG FLEX 50W series firmware versions from V5.35 through V5.41, and...

CVE-2025-11730

A post‑authentication command injection vulnerability in the Dynamic DNS DDNS configuration CLI command in Zyxel ATP series firmware versions from V5.35 through V5.41, USG FLEX series firmware versions from V5.35 through V5.41, USG FLEX 50W series firmware versions from V5.35 through V5.41, and...

Nsasoft Nsauditor 安全漏洞

Nsasoft Nsauditor is a network security software developed by the US company Nsasoft. Versions 3.0.28 and 3.2.1.0 of Nsasoft Nsauditor contain security vulnerabilities. These vulnerabilities stem from buffer overflows in the DNS lookup tool, which could allow attackers to execute arbitrary code...

CVE-2026-25518 cert-manager-controller DoS via Specially Crafted DNS Response

cert-manager adds certificates and certificate issuers as resource types in Kubernetes clusters, and simplifies the process of obtaining, renewing and using those certificates. In versions from 1.18.0 to before 1.18.5 and from 1.19.0 to before 1.19.3, the cert-manager-controller performs DNS...

CVE-2026-25518 cert-manager-controller DoS via Specially Crafted DNS Response

cert-manager adds certificates and certificate issuers as resource types in Kubernetes clusters, and simplifies the process of obtaining, renewing and using those certificates. In versions from 1.18.0 to before 1.18.5 and from 1.19.0 to before 1.19.3, the cert-manager-controller performs DNS...

Improper Certificate Validation

Overview Affected versions of this package are vulnerable to Improper Certificate Validation due to the DefaultConfig function, which sets TlsInsecureSkipVerify to true, disabling TLS certificate verification for all outgoing storage driver communications. An attacker can intercept and manipulate...

CVE-2026-24934

The DDNS function uses an insecure HTTP connection or fails to validate the SSL/TLS certificate when querying an external server for the device's WAN IP address. An unauthenticated remote attacker can perform a Man-in-the-Middle MitM attack to spoof the response, leading the device to update its...

Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 25.10 : GNU C Library vulnerabilities (USN-8005-1)

The remote Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 25.10 host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8005-1 advisory. Vitaly Simonovich discovered that the GNU C Library did not properly initialize the input when...

PT-2026-5873

Name of the Vulnerable Software and Affected Versions Zyxel ATP series versions V5.35 through V5.41 Zyxel USG FLEX series versions V5.35 through V5.41 Zyxel USG FLEX 50W series versions V5.35 through V5.41 Zyxel USG20W-VPN series versions V5.35 through V5.41 Description A post-authentication...

SUSE SLES16 Security Update : glibc (SUSE-SU-2026:20198-1)

The remote SUSE Linux SLES16 / SLESSAP16 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:20198-1 advisory. Security fixes: - CVE-2025-0395: Fixed buffer overflow in the assert function bsc1236282. - CVE-2026-0861: Fixed inadequate size...

SUSE-SU-2026:0371-1 Security update for glibc

This update for glibc fixes the following issues: Security fixes: - CVE-2026-0861: Fixed inadequate size check in the memalign suite may result in an integer overflow bsc1256766. - CVE-2026-0915: Fixed uninitialized stack buffer used as DNS query name when net==0 in nssdnsgetnetbyaddrr bsc1256822...