CVE-2026-3238

A flaw was found in Samba’s WINS server component when running as an Active Directory Domain Controller. The WINS protocol handlers for certain request types did not properly validate incoming packets, allowing an unauthenticated remote attacker to trigger a NULL pointer dereference and crash the...

CVE-2026-3238 Samba: denial of service against ad dc wins server

A flaw was found in Samba’s WINS server component when running as an Active Directory Domain Controller. The WINS protocol handlers for certain request types did not properly validate incoming packets, allowing an unauthenticated remote attacker to trigger a NULL pointer dereference and crash the...

CVE-2026-3238 Samba: denial of service against ad dc wins server

A flaw was found in Samba’s WINS server component when running as an Active Directory Domain Controller. The WINS protocol handlers for certain request types did not properly validate incoming packets, allowing an unauthenticated remote attacker to trigger a NULL pointer dereference and crash the...

CVE-2026-3238

A flaw was found in Samba’s WINS server component when running as an Active Directory Domain Controller. The WINS protocol handlers for certain request types did not properly validate incoming packets, allowing an unauthenticated remote attacker to trigger a NULL pointer dereference and crash the...

Samba 代码问题漏洞

Samba is an open-source suite of standard Windows interoperability programs for Linux and Unix systems. Samba has a code vulnerability that stems from the WINS protocol handler, which fails to properly validate incoming packets when operating as an Active Directory domain controller. This allows...

CVE-2026-33447

CVE-2026-33447 is a buffer overflow in a message parsing function of the Secure Access client prior to 14.50. Attackers with control of a modified server can send a special packet that can overwrite a small portion of memory conceivably leading to memory corruption or denial of service...

CVE-2026-39834

When writing data larger than 4GB in a single Write call on an SSH channel, an integer overflow in the internal payload size calculation caused the write loop to spin indefinitely, sending empty packets without making progress. The size comparison now uses int64 to prevent truncation...

CVE-2025-53844

A out-of-bounds write vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2.0 through 7.2.11 allows attacker to execute unauthorized code or commands via specially crafted packets...

CVE-2024-27686

Mikrotik RouterOS x86 6.40.5 through 6.49.10 fixed in 7 allows a remote attacker to cause a denial of service device crash via crafted packet data to the SMB service on TCP port 445...

CVE-2026-7473

On affected platforms running Arista EOS where a tunnel decapsulation configuration—such as VXLAN Virtual Extensible LAN, decap-groups, or a GRE Generic Routing Encapsulation tunnel interface—is present, the switch will incorrectly decapsulate and forward other unexpected tunneled packet with a...

CVE-2025-5089

In a CVX cluster, an EOS switch connected to a CVX server is not resilient to certain malformed messages received from the connected CVX server. Similarly, the CVX server is not resilient to certain malformed messages received from the connected EOS switch. This leads to either a Sysdb agent cras...

CVE-2026-7473 Arista EOS Unexpected Tunnel Protocol Decapsulation and Forwarding Bypass

On affected platforms running Arista EOS where a tunnel decapsulation configuration—such as VXLAN Virtual Extensible LAN, decap-groups, or a GRE Generic Routing Encapsulation tunnel interface—is present, the switch will incorrectly decapsulate and forward other unexpected tunneled packet with a...

CVE-2026-7473

On affected platforms running Arista EOS where a tunnel decapsulation configuration—such as VXLAN Virtual Extensible LAN, decap-groups, or a GRE Generic Routing Encapsulation tunnel interface—is present, the switch will incorrectly decapsulate and forward other unexpected tunneled packet with a...

CVE-2025-5090 Arista CloudVision Exchange Cluster Instability via Unexpected Switch Messages

CVX is not resilient to unexpected messages from a connected switch. This leads to agent crashes on CVX causing instability in the CVX cluster. An attacker could use this behavior to create a denial of service DoS scenario. Note that this would require the attacker to have a high privilege access...

CVE-2025-5090

CVE-2025-5090 affects Arista CloudVision Exchange (CVX) in Arista EOS-based deployments. The issue arises when CVX processes unexpected messages from a connected switch, leading to agent crashes on CVX and instability in the CVX cluster, enabling a DoS under high-privilege conditions on the conne...

CVE-2025-5090

CVX is not resilient to unexpected messages from a connected switch. This leads to agent crashes on CVX causing instability in the CVX cluster. An attacker could use this behavior to create a denial of service DoS scenario. Note that this would require the attacker to have a high privilege access...

CVE-2025-5089

In a CVX cluster, an EOS switch connected to a CVX server is not resilient to certain malformed messages received from the connected CVX server. Similarly, the CVX server is not resilient to certain malformed messages received from the connected EOS switch. This leads to either a Sysdb agent cras...

Arista EOS 安全漏洞

Arista EOS is a fully programmable, highly modular Linux-based network operating system developed by the American company Arista. There is a security vulnerability in Arista EOS, which arises due to the lack of verification of the tunnel protocol type during tunnel decapsulation configurations...

PT-2026-46975

CVX is not resilient to unexpected messages from a connected switch. This leads to agent crashes on CVX causing instability in the CVX cluster. An attacker could use this behavior to create a denial of service DoS scenario. Note that this would require the attacker to have a high privilege access...

CVE-2025-8873

CVE-2025-8873 affects Arista EOS with IPsec enabled: a specially crafted packet can stop dataplane processing of all IPsec traffic, with control plane detecting and resetting the IPsec pipeline; after reset, IPsec traffic may not resume. Non-IPsec traffic is unaffected. Affected EOS releases incl...