OVSwrap-CVE-2026-64531-Mitigation-Tool

OVSwrap CVE-2026-64531 Mitigation Tool A simple script that detects and mitigates the OVSwrap vulnerability affecting Open vSwitch kernel modules. Features Detects vulnerable Open vSwitch modules Determines whether the module is loaded Blocks automatic loading Removes the module safely Verifies...

ovswrap-poc

ovswrap-poc CVE-2026-64531 OVSwrap PoC - Linux kernel Open vSwitch LPE; for patch validation and security research...

CVE-2026-64531

🔥 CVE-2026-64531 — OVSwrap فساد الذاكرة في Open vSwitch بنواة لينكس 🩸 نظرة عامة على الثغرة CVE-2026-64531 هي ثغرة أمنية تؤثر على نظام Open vSwitch OVS الفرعي للشبكات في نواة لينكس. يكمن الخلل في معالجة سمات Netlink المتداخلة ، حيث يمكن لهياكل الإجراءات كبيرة الحجم تجاوز حدود الحجم وربما تؤدي إلى...

ovswrap

OVSwrap — Site de suivi du dépassement du datapath Open vSwitch du noyau Linux Source du suivi de l'état des correctifs OVSwrap : un site à page unique recensant les distributions qui ont publié un correctif pour le dépassement du datapath Open vSwitch dans le noyau Linux. Où vivent les faits Tou...

Detection-and-Mitigation-for-CVE-2022-2639

Detection-and-Mitigation-for-CVE-2022-2639 Description The Open vSwitch kernel module allows flexible userspace control over flow-level packet processing on selected network devices. It can be used to implement a plain Ethernet switch, network device bonding, VLAN processing, network access...

CVE-2026-64531

CVE-2026-64531 — OVSwrap Linux kernel Open vSwitch module local privilege escalation normal user → root PoC. Exploits the integer wraparound of the 16-bit nlalen field to escalate from a normal user all the way to root. Vulnerability Summary When the nested action stream generated by OVS exceeds...

OVSwrap

OVSwrap CVE-2026-64531 Writeup !WARNING The PoC is provided solely to help defenders, maintainers, and authorized security teams validate patches, mitigations, detections, and exposure on systems they own or are explicitly authorized to test. You are solely responsible for ensuring that your use ...

USN-8643-5: Linux kernel vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - Network drivers; - Open vSwitch; - SCTP protocol; CVE-2026-53224, CVE-2026-53246, CVE-2026-53247, CVE-2026-64531...

CVE-2022-50999

creationtimestamp| type| source ---|---|--- 2026-08-25 18:56:18+00:00| seen| https://bsky.app/profile/postac001.bsky.social/post/3mtwioadzaj2v 2026-09-02 09:07:06+00:00| seen| https://bsky.app/profile/cyberhub.blog/post/3mujlhzuqxc2l...

The vulnerability of the validate_set() function in the net_openvswitch/flow_netlink.c module, which supports Open vSwitch routers in Linux operating systems, allows a attacker to compromise the confidentiality and accessibility of protected information.

The vulnerability of the validateset function in the netopenvswitch/flownetlink.c module, which supports Open vSwitch routers in Linux operating systems, relates to the occurrence of operations outside the buffer in memory. Exploiting this vulnerability could allow an attacker to compromise the...

The vulnerability of the `ovs_netdev_tunnelDestroy()` function in the `net/openvswitch/vport-netdev.c` file, which is part of the Open vSwitch router support in the Linux operating system, allows a attacker to compromise the confidentiality, integrity, and accessibility of protected information.

The vulnerability of the ovsnetdevtunnelDestroy function in the net/openvswitch/vport-netdev.c module, which supports Open vSwitch routers in the Linux operating system, is related to the lack of protection for sensitive data. Exploiting this vulnerability could allow an attacker to compromise th...

kernel: net: openvswitch: reject oversized nested action attrs

A flaw was found in Open vSwitch in the Linux kernel. Improper handling of oversized nested action attributes can lead to a truncated length field, which could be exploited by a local attacker to alter kernel memory. This alteration might result in the disclosure of sensitive information or a loc...

kernel: net: openvswitch: reject oversized nested action attrs

A flaw was found in Open vSwitch in the Linux kernel. Improper handling of oversized nested action attributes can lead to a truncated length field, which could be exploited by a local attacker to alter kernel memory. This alteration might result in the disclosure of sensitive information or a loc...

kernel: net: openvswitch: reject oversized nested action attrs

A flaw was found in Open vSwitch in the Linux kernel. Improper handling of oversized nested action attributes can lead to a truncated length field, which could be exploited by a local attacker to alter kernel memory. This alteration might result in the disclosure of sensitive information or a loc...

kernel: net: openvswitch: reject oversized nested action attrs

A flaw was found in Open vSwitch in the Linux kernel. Improper handling of oversized nested action attributes can lead to a truncated length field, which could be exploited by a local attacker to alter kernel memory. This alteration might result in the disclosure of sensitive information or a loc...

CVE-2026-74701

A flaw was found in the Open vSwitch component of the Linux kernel. When a specially crafted packet with ETHPTEB protocol arrives on an ARPHRDNONE device, the keyextract function does not properly verify the Ethernet header length. This oversight allows a remote attacker to trigger a kernel bug,...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: rejecting negative ifindex values Recent changes in net-next commit 759ab1edb56c refactored the handling of pre-assigned ifindex values. This led to a latent issue in ovs. ovs does not validate ifindex values,...

Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerability has been resolved: openvswitch: Fixed an issue where stack out-of-bounds reading occurred when fragmenting IPv4 packets. When running openvswitch on kernels built with KASAN, it is possible to observe the following error during the testing of IPv4...

CVE-2026-74664

A flaw was found in the Linux kernel's Open vSwitch component. When processing flow updates, the ovsflowcmdnew function preallocates a reply buffer based on the request's flow identifier. If a shorter User Flow ID UFID is provided, but the system matches an existing flow with a longer key...

SUSE CVE-2026-74664

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: reallocate update replies for mismatched IDs ovsflowcmdnew preallocates the optional reply skb before it takes ovsmutex and before it knows which existing flow will be updated. That is normally fine because the...