Weakness (CWE)
CWE-416: Use After Free
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
How to prevent it (2 mitigations)
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Architecture and Design
Choose a language that provides automatic memory management.
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Implementation
When freeing pointers, be sure to set them to NULL once they are freed. However, the utilization of multiple or complex data structures may lower the usefulness of this strategy.
Source: MITRE CWE-416
4,663 results · Clear filters · Feed
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High 7.0CVE-2025-24983 Exploited
Windows Win32 Kernel Subsystem Elevation of Privilege Vulnerability
Use after free in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.
KEV Mar 11, 2025 -
High 7.8
Microsoft Local Security Authority (LSA) Server Elevation of Privilege Vulnerability
Use after free in Microsoft Local Security Authority Server (lsasrv) allows an authorized attacker to elevate privileges locally.
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High 8.1
Windows Domain Name Service Remote Code Execution Vulnerability
Use after free in DNS Server allows an unauthorized attacker to execute code over a network.
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High 7.8
Kernel Streaming Service Driver Elevation of Privilege Vulnerability
Use after free in Microsoft Streaming Service allows an authorized attacker to elevate privileges locally.
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High 7.8
Microsoft Excel Remote Code Execution Vulnerability
Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
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High 7.8
Microsoft Excel Remote Code Execution Vulnerability
Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
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High 7.8
Microsoft Office Remote Code Execution Vulnerability
Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.
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High 7.8
Microsoft Word Remote Code Execution Vulnerability
Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally.
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High 7.0
Microsoft Word Remote Code Execution Vulnerability
Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally.
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High 7.8
Microsoft Word Remote Code Execution Vulnerability
Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally.
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High 7.8
Windows Win32 Kernel Subsystem Elevation of Privilege Vulnerability
Use after free in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.
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High 7.8
A vulnerability has been identified in Teamcenter Visualization V14.3 (All versions < V14.3.0.13), Teamcenter Visualiza…
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High 8.8
Use after free in Inspector in Google Chrome prior to 134.0.6998.88 allowed a remote attacker to potentially exploit he…
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High 7.8
GPU DDK - Exploitable kernel double free on apsFenceSyncCheckpoints allocated with arbitrary size
Software installed and run as a non-privileged user may conduct improper GPU system calls to corrupt kernel heap memory.
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High 7.8
KVM: Explicitly verify target vCPU is online in kvm_get_vcpu()
In the Linux kernel, the following vulnerability has been resolved: KVM: Explicitly verify target vCPU is online in kvm_get_vcpu() Explicitly verify the target vCPU is fully online _prior_ to clamping the index in kvm_get_vcpu(). If the index is "bad", the no…
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High 7.8
bpf: Reject struct_ops registration that uses module ptr and the module btf_id is missing
In the Linux kernel, the following vulnerability has been resolved: bpf: Reject struct_ops registration that uses module ptr and the module btf_id is missing There is a UAF report in the bpf_struct_ops when CONFIG_MODULES=n. In particular, the report is on tc…
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High 8.8
Use after free in Profiles in Google Chrome prior to 134.0.6998.35 allowed an attacker who convinced a user to install …
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High 7.5
Use-after-free in WebTransportChild
It was possible to cause a use-after-free in the content process side of a WebTransport connection, leading to a potentially exploitable crash. This vulnerability was fixed in Firefox 136, Firefox ESR 115.21, Firefox ESR 128.8, Thunderbird 136, and Thunderbir…
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High 8.8
AudioIPC StreamData could trigger a use-after-free in the Browser process
On Windows, a compromised content process could use bad StreamData sent over AudioIPC to trigger a use-after-free in the Browser process. This could have led to a sandbox escape. This vulnerability was fixed in Firefox 136, Firefox ESR 115.21, Firefox ESR 128…
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High 7.8
Use After Free in NPU
Memory corruption while calling the NPU driver APIs concurrently.
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High 7.8
Use After Free in Automotive Android OS
Memory corruption may occur while accessing a variable during extended back to back tests.
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High 7.8
Use After Free in DSP Service
Memory corruption while handling multuple IOCTL calls from userspace for remote invocation.
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High 7.8
Use After Free in Camera Linux
Memory corruption caused by missing locks and checks on the DMA fence and improper synchronization.
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High 7.8
Use After Free in Audio
Memory corruption during voice activation, when sound model parameters are loaded from HLOS, and the received sound model list is empty in HLOS drive.
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High 7.8
Use After Free in Automotive Multimedia
Memory corruption while invoking IOCTL calls from the use-space for HGSL memory node.
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High 7.8
Use After Free in MProc
Memory corruption while processing command in Glink linux.
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High 7.8
nilfs2: protect access to buffers with no active references
In the Linux kernel, the following vulnerability has been resolved: nilfs2: protect access to buffers with no active references nilfs_lookup_dirty_data_buffers(), which iterates through the buffers attached to dirty data folios/pages, accesses the attached bu…
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High 7.8
ax25: rcu protect dev->ax25_ptr
In the Linux kernel, the following vulnerability has been resolved: ax25: rcu protect dev->ax25_ptr syzbot found a lockdep issue [1]. We should remove ax25 RTNL dependency in ax25_setsockopt() This should also fix a variety of possible UAF in ax25. [1] WARNIN…
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High 7.8
memory: tegra20-emc: fix an OF node reference bug in tegra_emc_find_node_by_ram_code()
In the Linux kernel, the following vulnerability has been resolved: memory: tegra20-emc: fix an OF node reference bug in tegra_emc_find_node_by_ram_code() As of_find_node_by_name() release the reference of the argument device node, tegra_emc_find_node_by_ram_…
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High 7.8
HID: corsair-void: Add missing delayed work cancel for headset status
In the Linux kernel, the following vulnerability has been resolved: HID: corsair-void: Add missing delayed work cancel for headset status The cancel_delayed_work_sync() call was missed, causing a use-after-free in corsair_void_remove().
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High 7.8
vrf: use RCU protection in l3mdev_l3_out()
In the Linux kernel, the following vulnerability has been resolved: vrf: use RCU protection in l3mdev_l3_out() l3mdev_l3_out() can be called without RCU being held: raw_sendmsg() ip_push_pending_frames() ip_send_skb() ip_local_out() __ip_local_out() l3mdev_ip…
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High 7.8
workqueue: Put the pwq after detaching the rescuer from the pool
In the Linux kernel, the following vulnerability has been resolved: workqueue: Put the pwq after detaching the rescuer from the pool The commit 68f83057b913("workqueue: Reap workers via kthread_stop() and remove detach_completion") adds code to reap the norma…
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High 7.8
ndisc: use RCU protection in ndisc_alloc_skb()
In the Linux kernel, the following vulnerability has been resolved: ndisc: use RCU protection in ndisc_alloc_skb() ndisc_alloc_skb() can be called without RTNL or RCU being held. Add RCU protection to avoid possible UAF.
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High 7.8
neighbour: use RCU protection in __neigh_notify()
In the Linux kernel, the following vulnerability has been resolved: neighbour: use RCU protection in __neigh_notify() __neigh_notify() can be called without RTNL or RCU protection. Use RCU protection to avoid potential UAF.
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High 7.8
openvswitch: use RCU protection in ovs_vport_cmd_fill_info()
In the Linux kernel, the following vulnerability has been resolved: openvswitch: use RCU protection in ovs_vport_cmd_fill_info() ovs_vport_cmd_fill_info() can be called without RTNL or RCU. Use RCU protection and dev_net_rcu() to avoid potential UAF.
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High 8.1
arp: use RCU protection in arp_xmit()
In the Linux kernel, the following vulnerability has been resolved: arp: use RCU protection in arp_xmit() arp_xmit() can be called without RTNL or RCU protection. Use RCU protection to avoid potential UAF.
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High 8.1CVE-2025-21760 EPSS 38%
ndisc: extend RCU protection in ndisc_send_skb()
In the Linux kernel, the following vulnerability has been resolved: ndisc: extend RCU protection in ndisc_send_skb() ndisc_send_skb() can be called without RTNL or RCU held. Acquire rcu_read_lock() earlier, so that we can use dev_net_rcu() and avoid a potenti…
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High 7.8
ipv6: mcast: extend RCU protection in igmp6_send()
In the Linux kernel, the following vulnerability has been resolved: ipv6: mcast: extend RCU protection in igmp6_send() igmp6_send() can be called without RTNL or RCU being held. Extend RCU protection so that we can safely fetch the net pointer and avoid a pot…
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High 7.8CVE-2025-21756 Public exploit
vsock: Keep the binding until socket destruction
In the Linux kernel, the following vulnerability has been resolved: vsock: Keep the binding until socket destruction Preserve sockets bindings; this includes both resulting from an explicit bind() and those implicitly bound through autobind during connect(). …
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High 7.8
scsi: ufs: bsg: Set bsg_queue to NULL after removal
In the Linux kernel, the following vulnerability has been resolved: scsi: ufs: bsg: Set bsg_queue to NULL after removal Currently, this does not cause any issues, but I believe it is necessary to set bsg_queue to NULL after removing it to prevent potential us…