Weakness (CWE)
CWE-123: Write-what-where Condition
Any condition where the attacker has the ability to write an arbitrary value to an arbitrary location, often as the result of a buffer overflow.
How to prevent it (2 mitigations)
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Architecture and Design
Use a language that provides appropriate memory abstractions.
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Operation
Use OS-level preventative functionality integrated after the fact. Not a complete solution.
Source: MITRE CWE-123
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Medium 6.9CVE-2026-25262 Public exploit
Write-what-where Condition in Primary Bootloader
Memory corruption while processing a crafted ELF file in the Primary Bootloader.
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High 8.8CVE-2026-94129 Public exploit
BioStar VALKYRIE AURORA IOCTL BS_RVSIO64.sys sub_1105C write-what-where
A vulnerability was detected in BioStar VALKYRIE AURORA 2.10.2411.0800. This vulnerability affects the function sub_1105C of the file BS_RVSIO64.sys of the component IOCTL Handler. The manipulation of the argument PhysicalAddress results in write-what-where c…
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High 8.8CVE-2026-94128 Public exploit
BioStar VIVID LED DJ IOCTL BS_LED64.sys sub_1105C write-what-where
A security vulnerability has been detected in BioStar VIVID LED DJ 4.0.2411.1500. This affects the function sub_1105C of the file BS_LED64.sys of the component IOCTL Handler. The manipulation of the argument AssociatedIrp leads to write-what-where condition. …
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High 7.8
net: skbuff: preserve shared-frag marker during coalescing
In the Linux kernel, the following vulnerability has been resolved: net: skbuff: preserve shared-frag marker during coalescing skb_try_coalesce() can attach paged frags from @from to @to. If @from has SKBFL_SHARED_FRAG set, the resulting @to skb can contain t…
KEV Oct 28, 2026 -
High 7.8
rxrpc: Also unshare DATA/RESPONSE packets when paged frags are present
In the Linux kernel, the following vulnerability has been resolved: rxrpc: Also unshare DATA/RESPONSE packets when paged frags are present The DATA-packet handler in rxrpc_input_call_event() and the RESPONSE handler in rxrpc_verify_response() copy the skb to …
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High 8.8
xfrm: esp: avoid in-place decrypt on shared skb frags
In the Linux kernel, the following vulnerability has been resolved: xfrm: esp: avoid in-place decrypt on shared skb frags MSG_SPLICE_PAGES can attach pages from a pipe directly to an skb. TCP marks such skbs with SKBFL_SHARED_FRAG after skb_splice_from_iter()…
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Medium 5.4CVE-2025-14857 Public exploit
Semtech LR11xx Memory Write Access Control Bypass
An improper access control vulnerability exists in Semtech LoRa LR11xxx transceivers running early versions of firmware where the memory write command accessible via the physical SPI interface fails to enforce write protection on the program call stack. An at…
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Medium 4.6CVE-2025-29943 Public exploit
Write what were condition within AMD CPUs may allow an admin-privileged attacker to modify the configuration of the CPU…
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High 8.2CVE-2024-36877 Public exploit
Micro-Star International Z-series motherboards (Z590, Z490, and Z790) and B-series motherboards (B760, B560, B660, and …