Weakness (CWE)
CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary.
How to prevent it (7 mitigations)
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Requirements
Use a language that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
For example, many languages that perform their own memory management, such as Java and Perl, are not subject to buffer overflows. Other languages, such as Ada and C#, typically provide overflow protection, but the protection can be disabled by the programmer.
Be wary that a language's interface to native code may still be subject to overflows, even if the language itself is theoretically safe.
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Architecture and Design
Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
Examples include the Safe C String Library (SafeStr) by Messier and Viega [REF-57], and the Strsafe.h library from Microsoft [REF-56]. These libraries provide safer versions of overflow-prone string-handling functions.
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Operation, Build and Compilation
Use automatic buffer overflow detection mechanisms that are offered by certain compilers or compiler extensions. Examples include: the Microsoft Visual Studio /GS flag, Fedora/Red Hat FORTIFY_SOURCE GCC flag, StackGuard, and ProPolice, which provide various mechanisms including canary-based detection and range/index checking.
D3-SFCV (Stack Frame Canary Validation) from D3FEND [REF-1334] discusses canary-based detection in detail.
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Implementation
Consider adhering to the following rules when allocating and managing an application's memory:
- Double check that the buffer is as large as specified.
- When using functions that accept a number of bytes to copy, such as strncpy(), be aware that if the destination buffer size is equal to the source buffer size, it may not NULL-terminate the string.
- Check buffer boundaries if accessing the buffer in a loop and make sure there is no danger of writing past the allocated space.
- If necessary, truncate all input strings to a reasonable length before passing them to the copy and concatenation functions.
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Operation, Build and Compilation
Run or compile the software using features or extensions that randomly arrange the positions of a program's executable and libraries in memory. Because this makes the addresses unpredictable, it can prevent an attacker from reliably jumping to exploitable code.
Examples include Address Space Layout Randomization (ASLR) [REF-58] [REF-60] and Position-Independent Executables (PIE) [REF-64]. Imported modules may be similarly realigned if their default memory addresses conflict with other modules, in a process known as "rebasing" (for Windows) and "prelinking" (for Linux) [REF-1332] using randomly generated addresses. ASLR for libraries cannot be used in conjunction with prelink since it would require relocating the libraries at run-time, defeating the whole purpose of prelinking.
For more information on these techniques see D3-SAOR (Segment Address Offset Randomization) from D3FEND [REF-1335].
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Operation
Use a CPU and operating system that offers Data Execution Protection (using hardware NX or XD bits) or the equivalent techniques that simulate this feature in software, such as PaX [REF-60] [REF-61]. These techniques ensure that any instruction executed is exclusively at a memory address that is part of the code segment.
For more information on these techniques see D3-PSEP (Process Segment Execution Prevention) from D3FEND [REF-1336].
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Implementation
Replace unbounded copy functions with analogous functions that support length arguments, such as strcpy with strncpy. Create these if they are not available.
Source: MITRE CWE-119
59 results · Clear filters · Feed
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High 8.8CVE-2026-120232 Public exploit
Horizon DataSys Reboot Restore Standard Kernel Driver shield.sys sub_23908 memory corruption
A vulnerability was identified in Horizon DataSys Reboot Restore Standard up to 13.2. The impacted element is the function sub_23908 in the library shield.sys of the component Kernel Driver. Such manipulation leads to memory corruption. The attack can only be…
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High 8.8CVE-2026-112688 Public exploit
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High 8.1CVE-2026-109715 Public exploit
Incorrect boundary conditions in the JavaScript Engine component
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High 8.8CVE-2026-88777 Public exploit
Memory overflow vulnerability leading to unpredictable or erroneous behavior or Denial of Service
Memory overflow vulnerability vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway. This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1.37.279 FIPS and NDcPP; Gateway: before 14.1-73.37 and befor…
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High 8.8CVE-2026-88776 Public exploit
Memory overflow vulnerability leading to unpredictable or erroneous behavior or Denial of Service
Memory overflow vulnerability vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway. This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1.37.279 FIPS and NDcPP; Gateway: before 14.1-73.37 and befor…
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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 8.8
Memory overflow vulnerability leading to unpredictable or erroneous behavior and Denial of Service
Memory overflow vulnerability NetScaler ADC and NetScaler Gateway leading to unpredictable or erroneous behavior and Denial of Service if the appliance is configured as a Gateway (SSL VPN, ICA Proxy, CVPN, RDP Proxy) or AAA virtual server
KEV Aug 26, 2026 -
High 8.8CVE-2026-11553 Public exploit
Tenda HG7/HG9/HG10 formPPPEdit stack-based overflow
A vulnerability was found in Tenda HG7, HG9 and HG10 300001138_en_xpon. This affects the function formPPPEdit of the file /boaform/formPPPEdit. The manipulation of the argument encodename results in stack-based buffer overflow. The attack can be launched remo…
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High 8.8CVE-2026-8389 Public exploit
JIT miscompilation in the JavaScript Engine: JIT component
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High 7.5CVE-2026-28990 Public exploit
The issue was addressed with improved memory handling. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.5 …
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High 8.8CVE-2026-4961 Public exploit
Tenda AC6 POST Request QuickIndex formQuickIndex stack-based overflow
A vulnerability was identified in Tenda AC6 15.03.05.16. Affected by this vulnerability is the function formQuickIndex of the file /goform/QuickIndex of the component POST Request Handler. The manipulation of the argument PPPOEPassword leads to stack-based bu…
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High 8.8CVE-2026-4861 Public exploit
Wavlink WL-NU516U1 nas.cgi ftext stack-based overflow
A weakness has been identified in Wavlink WL-NU516U1 260227. This vulnerability affects the function ftext of the file /cgi-bin/nas.cgi. This manipulation of the argument Content-Length causes stack-based buffer overflow. The attack can be initiated remotely.…
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High 8.8
Inappropriate implementation in V8 in Google Chrome prior to 146.0.7680.75 allowed a remote attacker to execute arbitra…
KEV Mar 13, 2026 -
High 7.8
A memory corruption issue was addressed with improved state management. This issue is fixed in iOS 26.3 and iPadOS 26.3…
KEV Feb 12, 2026 -
High 8.8
Out of bounds memory access in ANGLE in Google Chrome on Mac prior to 143.0.7499.110 allowed a remote attacker to perfo…
KEV Dec 12, 2025 -
High 8.8CVE-2025-10666 Public exploit
D-Link DIR-825 apply.cgi sub_4106d4 buffer overflow
A security flaw has been discovered in D-Link DIR-825 up to 2.10. Affected by this vulnerability is the function sub_4106d4 of the file apply.cgi. The manipulation of the argument countdown_time results in buffer overflow. The attack can be executed remotely.…
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High 8.8
The issue was addressed with improved memory handling. This issue is fixed in Safari 18.6, iOS 18.6 and iPadOS 18.6, ma…
KEV Mar 20, 2026 -
High 8.8CVE-2025-7795 Public exploit
Tenda FH451 P2pListFilter fromP2pListFilter stack-based overflow
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High 8.4CVE-2025-34106 Public exploit
PDF Shaper v3.5/3.6 Buffer Overflow via Convert to Image Feature
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High 7.3
FreeFloat FTP Server NOOP Command buffer overflow
A vulnerability, which was classified as critical, was found in FreeFloat FTP Server 1.0. Affected is an unknown function of the component NOOP Command Handler. The manipulation leads to buffer overflow. It is possible to launch the attack remotely. The explo…
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High 7.3CVE-2025-4871 Public exploit
PCMan FTP Server REST Command buffer overflow
A vulnerability, which was classified as critical, has been found in PCMan FTP Server 2.0.7. This issue affects some unknown processing of the component REST Command Handler. The manipulation leads to buffer overflow. The attack may be initiated remotely. The…
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High 7.3CVE-2025-4255 Public exploit
PCMan FTP Server RMD Command buffer overflow
A vulnerability classified as critical has been found in PCMan FTP Server 2.0.7. This affects an unknown part of the component RMD Command Handler. The manipulation leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been…
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High 7.5CVE-2024-11237 Public exploit
TP-Link VN020 F3v(T) DHCP DISCOVER Packet Parser TP-Thumper stack-based overflow
A vulnerability, which was classified as critical, has been found in TP-Link VN020 F3v(T) TT_V6.2.1021. Affected by this issue is some unknown functionality of the component DHCP DISCOVER Packet Parser. The manipulation of the argument hostname leads to stack…
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High 7.9CVE-2024-21980 Public exploit
Improper restriction of write operations in SNP firmware could allow a malicious hypervisor to potentially overwrite a …
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High 7.3CVE-2024-1112 Public exploit
Buffer Overflow Vulnerability in Resource Hacker
Heap-based buffer overflow vulnerability in Resource Hacker, developed by Angus Johnson, affecting version 3.6.0.92. This vulnerability could allow an attacker to execute arbitrary code via a long filename argument.
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High 8.1CVE-2022-29465 Public exploit
An out-of-bounds write vulnerability exists in the PSD Header processing memory allocation functionality of Accusoft Im…
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High 7.8CVE-2022-26763 Public exploit
An out-of-bounds access issue was addressed with improved bounds checking. This issue is fixed in tvOS 15.5, iOS 15.5 a…
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High 7.8
Arm Mali GPU Kernel Driver allows a non-privileged user to achieve write access to read-only memory pages. This affects…
KEV Mar 30, 2023 -
High 7.8CVE-2021-1480 Public exploit
Cisco SD-WAN vManage Software Vulnerabilities
Multiple vulnerabilities in Cisco SD-WAN vManage Software could allow an unauthenticated, remote attacker to execute arbitrary code or allow an authenticated, local attacker to gain escalated privileges on an affected system. For more information about these …
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High 8.8
In iOS before 11.4 and macOS High Sierra before 10.13.5, a memory corruption issue exists and was addressed with improv…
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High 8.8
An issue was discovered in certain Apple products. iOS before 11.4 is affected. Safari before 11.1.1 is affected. iClou…
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High 7.5
ChakraCore RCE Vulnerability
ChakraCore and Windows 10 1511, 1607, 1703, 1709, and Windows Server 2016 allows an attacker to execute arbitrary code in the context of the current user, due to how the scripting engine handles objects in memory, aka "Scripting Engine Memory Corruption Vulne…
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High 7.5
ChakraCore vulnerable to remote code execution
ChakraCore and Windows 10 1511, 1607, 1703, 1709, and Windows Server 2016 allows an attacker to execute arbitrary code in the context of the current user, due to how the scripting engine handles objects in memory, aka "Scripting Engine Memory Corruption Vulne…
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High 7.5
ChakraCore vulnerable to privilege escalation due to exposure from scriptFunction
ChakraCore and Microsoft Edge in Windows 10 1511, 1607, 1703, 1709, and Windows Server 2016 allows an attacker to gain the same user rights as the current user, due to how the scripting engine handles objects in memory, aka "Scripting Engine Memory Corruption…
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High 7.5
ChakraCore vulnerable to remote code execution
ChakraCore and Microsoft Edge in Windows 10 1511, 1607, 1703, 1709, and Windows Server 2016 allows an attacker to execute arbitrary code in the context of the current user, due to how the scripting engine handles objects in memory, aka "Scripting Engine Memor…
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High 7.8
Microsoft Office 2007 Service Pack 3, Microsoft Office 2010 Service Pack 2, Microsoft Office 2013 Service Pack 1, and M…
KEV Nov 3, 2021 -
High 7.5
Chakra Core vulnerable to privilege escalation when writing to JavaScript null scope objects
ChakraCore and Microsoft Edge in Windows 10 1703, 1709, and Windows Server, version 1709 allows an attacker to gain the same user rights as the current user, due to how the scripting engine handles objects in memory, aka "Scripting Engine Memory Corruption Vu…
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High 7.8
Microsoft Outlook 2010 SP2, Outlook 2013 SP1 and RT SP1, and Outlook 2016 allow an attacker to execute arbitrary comman…
KEV Nov 3, 2021 -
High 7.8
Microsoft Office 2010, SharePoint Enterprise Server 2010, SharePoint Server 2010, Web Applications, Office Web Apps Ser…
KEV Mar 3, 2022