The vulnerability of the VMXNET3 network adapter allows attackers to escalate their privileges and execute arbitrary code on VMware Workstation and VMware Fusion hypervisors.

The vulnerability of the VMXNET3 network adapter in VMware Workstation and VMware Fusion relates to a potential overflow condition. Exploiting this vulnerability can allow an attacker to gain elevated privileges and execute arbitrary code...

CVE-2026-59346-POC

CVE-2026-59346 — Desbordamiento de entero en TSO de VMXNET3 VMware Workstation / Fusion Prueba de concepto de un desbordamiento de entero de 32 bits en la ruta de segmentación TSO de la NIC virtual VMXNET3 en vmware-vmx, alcanzable desde una VM invitada. Este problema está parcheado. La PoC se...

Astra Linux – Vulnerability in Qemu

In QEMU versions up to 5.0.0, an assertion failure can occur during network packet processing. This issue affects the e1000e and vmxnet3 network devices. A malicious guest user/process could exploit this flaw to terminate the QEMU process on the host, resulting in a denial-of-service condition in...

Astra Linux – Vulnerability in Qemu

An integer overflow issue was identified in the vmxnet3 NIC emulator of QEMU for versions up to v5.2.0. This issue can occur if a guest provides invalid values for the rx/tx queue size or other NIC parameters. A privileged guest user may exploit this flaw to crash the QEMU process on the host,...

vmxnet3Hunter

摘要： vmxnet3Hunter 将查找所有运行 vmxnet3 适配器的虚拟机，并将其父集群标记为易受最近 vmEscape 公告影响。 VMware 公告：https://www.vmware.com/security/advisories/VMSA-2018-0027.html CVE：CVE-2018-6981，CVE-2018-6982...

PT-2026-85031

Name of the Vulnerable Software and Affected Versions VMware Workstation versions 25H2 through 26H1 VMware Fusion versions 25H2 through 26H1 Description An integer overflow exists in the VMXNET3 virtual network adapter within the hypervisor. A malicious actor with local administrative privileges...

PT-2026-85032

Broadcom has fixed Critical security vulnerabilities in VMware Workstation and Fusion. CVE-2026-59346 CVE-2026-59347 https://t.co/OY9uOeyBn8...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

A NULL pointer dereference flaw was discovered in vmxnet3rqcleanup in drivers/net/vmxnet3/vmxnet3drv.c within the networking sub-component of vmxnet3 in the Linux Kernel. This issue may allow a local attacker with normal user privileges to cause a denial of service due to a missing sanity check...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

A use-after-free flaw was discovered in vmxnet3rqallocrxbuf in drivers/net/vmxnet3/vmxnet3drv.c within VMware’s vmxnet3 Ethernet NIC driver in the Linux kernel. This issue could allow a local attacker to cause the system to crash due to a double-free operation while cleaning up vmxnet3rqcleanupal...

VMware ESX 8.0 / 9.0 / 9.1 Out-of-Bounds Write (VMSA-2026-0006)

The version of VMware ESX installed on the remote host is 8.0 prior to build 25595708 8.0 Update 3k, or 9.0 prior to build 25595025 9.0.2.0100, or 9.1 prior to build 25557999 9.1.0.0200. It is, therefore, affected by a vulnerability as referenced in the VMSA-2026-0006.1 advisory: - VMware ESX...

SUSE CVE-2026-68299

In the Linux kernel, the following vulnerability has been resolved: vmxnet3: fix BUGON in vmxnet3gethdrlen for Geneve packets vmxnet3gethdrlen assumes gdesc-rcd.v4/v6/tcp always describe the outer header, but for a Geneve-encapsulated packet the device can set them based on the inner header...

CVE-2026-68299

A flaw was found in the vmxnet3 virtual network device driver within the Linux kernel. When processing Geneve-encapsulated packets, the vmxnet3gethdrlen function can incorrectly interpret header information, leading to a mismatch between expected and actual packet protocols or IP versions. This c...

CVE-2026-68299

In the Linux kernel, the following vulnerability has been resolved: vmxnet3: fix BUGON in vmxnet3gethdrlen for Geneve packets vmxnet3gethdrlen assumes gdesc-rcd.v4/v6/tcp always describe the outer header, but for a Geneve-encapsulated packet the device can set them based on the inner header...

UBUNTU-CVE-2026-68299

In the Linux kernel, the following vulnerability has been resolved: vmxnet3: fix BUGON in vmxnet3gethdrlen for Geneve packets vmxnet3gethdrlen assumes gdesc-rcd.v4/v6/tcp always describe the outer header, but for a Geneve-encapsulated packet the device can set them based on the inner header...

CVE-2026-68299

In the Linux kernel, the following vulnerability has been resolved: vmxnet3: fix BUGON in vmxnet3gethdrlen for Geneve packets vmxnet3gethdrlen assumes gdesc-rcd.v4/v6/tcp always describe the outer header, but for a Geneve-encapsulated packet the device can set them based on the inner header...

CVE-2026-68299 vmxnet3: fix BUG_ON in vmxnet3_get_hdr_len() for Geneve packets

In the Linux kernel, the following vulnerability has been resolved: vmxnet3: fix BUGON in vmxnet3gethdrlen for Geneve packets vmxnet3gethdrlen assumes gdesc-rcd.v4/v6/tcp always describe the outer header, but for a Geneve-encapsulated packet the device can set them based on the inner header...

CVE-2026-68299

Summary: CVE-2026-68299 affects the Linux kernel vmxnet3 driver. When handling Geneve-encapsulated packets, vmxnet3_get_hdr_len() may misinterpret header fields because gdesc->rcd.v4/v6/tcp describe the outer header, while the inner header can differ. The completion descriptor’s VMXNET3_RCD_HD...

CVE-2026-68299 vmxnet3: fix BUG_ON in vmxnet3_get_hdr_len() for Geneve packets

In the Linux kernel, the following vulnerability has been resolved: vmxnet3: fix BUGON in vmxnet3gethdrlen for Geneve packets vmxnet3gethdrlen assumes gdesc-rcd.v4/v6/tcp always describe the outer header, but for a Geneve-encapsulated packet the device can set them based on the inner header...

Linux Distros Unpatched Vulnerability : CVE-2026-68299

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - vmxnet3: fix BUGON in vmxnet3gethdrlen for Geneve packets vmxnet3gethdrlen assumes gdesc-rcd.v4/v6/tcp always describe the outer header, but for a...

CVE-2026-47876

VMware ESX contains an out-of-bounds write vulnerability in the VMXNET3 virtual network adapter. A malicious actor with local administrative privileges on a virtual machine with VMXNET3 virtual network adapter may exploit this issue to execute code on the host. Non VMXNET3 virtual adapters are no...