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
3,733 results · Feed
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High 8.8
The issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.5, macOS Sonoma 14.7.6. …
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High 8.8
The issue was addressed with improved memory handling. This issue is fixed in Safari 18.5, iOS 18.5 and iPadOS 18.5, ma…
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High 8.2
The issue was addressed with improved input sanitization. This issue is fixed in iOS 18.5 and iPadOS 18.5, macOS Sequoi…
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High 7.3
The issue was addressed with improved checks. This issue is fixed in Safari 18.5, iOS 18.5 and iPadOS 18.5, macOS Sequo…
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High 8.0
The issue was addressed with improved checks. This issue is fixed in Safari 18.5, iOS 18.5 and iPadOS 18.5, macOS Sequo…
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High 7.1
The issue was addressed with improved memory handling. This issue is fixed in iOS 18.5 and iPadOS 18.5, iPadOS 17.7.7, …
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Medium 6.6CVE-2025-4544 EPSS 12%
D-Link DI-8100 jhttpd ddos.asp stack-based overflow
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Medium 5.3
code-projects Album Management System Search Albums searchalbum stack-based overflow
A vulnerability, which was classified as critical, was found in code-projects Album Management System 1.0. This affects the function searchalbum of the component Search Albums. The manipulation leads to stack-based buffer overflow. Local access is required to…
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Medium 5.3
code-projects Hotel Management System Edit Room edit stack-based overflow
A vulnerability, which was classified as critical, has been found in code-projects Hotel Management System 1.0. Affected by this issue is the function Edit of the component Edit Room. The manipulation of the argument roomnumber leads to stack-based buffer ove…
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Medium 5.3
code-projects Simple Hospital Management System Add Information add stack-based overflow
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Medium 5.3
code-projects Simple Bus Reservation System Install Bus install stack-based overflow
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Medium 5.3
code-projects Simple Banking System Sign In buffer overflow
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High 8.8
TOTOLINK T10/A3100R/A950RG/A800R/N600R/A3000RU/A810R cstecgi.cgi CloudACMunualUpdate buffer overflow
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Medium 5.3
code-projects Simple College Management System Add New Student input stack-based overflow
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Medium 5.3
code-projects Departmental Store Management System bill stack-based overflow
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Medium 5.3
code-projects Jewelery Store Management system Search Item View stack-based overflow
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High 8.8
TOTOLINK N150RT formWsc buffer overflow
A vulnerability, which was classified as critical, has been found in TOTOLINK N150RT 3.4.0-B20190525. This issue affects some unknown processing of the file /boafrm/formWsc. The manipulation of the argument localPin leads to buffer overflow. The attack may be…
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High 8.8
D-Link DIR-619L formSetWizard2 buffer overflow
A vulnerability was found in D-Link DIR-619L 2.04B04 and classified as critical. Affected by this issue is the function formSetWizard2. The manipulation of the argument curTime leads to buffer overflow. The attack may be launched remotely. The vendor was cont…
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High 8.8
D-Link DIR-619L formSetWAN_Wizard52 buffer overflow
A vulnerability has been found in D-Link DIR-619L 2.04B04 and classified as critical. Affected by this vulnerability is the function formSetWAN_Wizard52. The manipulation of the argument curTime leads to buffer overflow. The attack can be launched remotely. T…
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High 8.8
D-Link DIR-619L formSetEasy_Wizard buffer overflow
A vulnerability, which was classified as critical, was found in D-Link DIR-619L 2.04B04. Affected is the function formSetEasy_Wizard. The manipulation of the argument curTime leads to buffer overflow. It is possible to launch the attack remotely. The vendor w…
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High 8.8
D-Link DIR-619L formEasySetupWizard3 buffer overflow
A vulnerability, which was classified as critical, has been found in D-Link DIR-619L 2.04B04. This issue affects the function formEasySetupWizard3. The manipulation of the argument wan_connected leads to buffer overflow. The attack may be initiated remotely. …
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High 8.8
D-Link DIR-619L formEasySetupWizard buffer overflow
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High 8.0
H3C GR-5400AX aspForm Edit_List_SSID buffer overflow
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High 8.8
D-Link DIR-605L formSetWAN_Wizard55 buffer overflow
A vulnerability was found in D-Link DIR-605L 2.13B01. It has been declared as critical. This vulnerability affects the function formSetWAN_Wizard55. The manipulation of the argument curTime leads to buffer overflow. The attack can be initiated remotely. The v…
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High 8.8
D-Link DIR-605L formSetWAN_Wizard534 buffer overflow
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High 8.0
H3C GR-1800AX aspForm EnableIpv6 buffer overflow
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Medium —
tanton_engine has unsound public API
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High 8.8
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High 8.8
Tenda DAP-1520 Authentication storage mod_graph_auth_uri_handler stack-based overflow
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High 8.8
Tenda DAP-1520 api set_ws_action heap-based overflow
A vulnerability was found in Tenda DAP-1520 1.10B04_BETA02. It has been classified as critical. This affects the function set_ws_action of the file /dws/api/. The manipulation leads to heap-based buffer overflow. It is possible to initiate the attack remotely…
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High 8.8
Tenda DAP-1520 storage check_dws_cookie stack-based overflow
A vulnerability was found in Tenda DAP-1520 1.10B04_BETA02 and classified as critical. Affected by this issue is the function check_dws_cookie of the file /storage. The manipulation leads to stack-based buffer overflow. The attack may be launched remotely. Th…
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High 8.8
D-Link DIR-600L formSetWanL2TP buffer overflow
A vulnerability was found in D-Link DIR-600L up to 2.07B01. It has been rated as critical. Affected by this issue is the function formSetWanL2TP. The manipulation of the argument host leads to buffer overflow. The attack may be launched remotely. This vulnera…
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High 8.8
D-Link DIR-600L formWlSiteSurvey buffer overflow
A vulnerability was found in D-Link DIR-600L up to 2.07B01. It has been declared as critical. Affected by this vulnerability is the function formWlSiteSurvey. The manipulation of the argument host leads to buffer overflow. The attack can be launched remotely.…
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High 8.8
D-Link DIR-600L formSetWAN_Wizard534 buffer overflow
A vulnerability was found in D-Link DIR-600L up to 2.07B01. It has been classified as critical. Affected is the function formSetWAN_Wizard534. The manipulation of the argument host leads to buffer overflow. It is possible to launch the attack remotely. This v…
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High 8.8
D-Link DIR-600L formSetLog buffer overflow
A vulnerability was found in D-Link DIR-600L up to 2.07B01 and classified as critical. This issue affects the function formSetLog. The manipulation of the argument host leads to buffer overflow. The attack may be initiated remotely. This vulnerability only af…
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High 8.8
D-Link DIR-600L formLogin buffer overflow
A vulnerability, which was classified as critical, was found in D-Link DIR-600L up to 2.07B01. This affects the function formLogin. The manipulation of the argument host leads to buffer overflow. It is possible to initiate the attack remotely. This vulnerabil…
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High 8.8
D-Link DIR-600L formEasySetupWizard buffer overflow
A vulnerability has been found in D-Link DIR-600L up to 2.07B01 and classified as critical. This vulnerability affects the function formEasySetupWizard. The manipulation of the argument host leads to buffer overflow. The attack can be initiated remotely. This…
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High 8.8
D-Link DIR-600L formEasySetupWizard3 buffer overflow
A vulnerability, which was classified as critical, has been found in D-Link DIR-600L up to 2.07B01. Affected by this issue is the function formEasySetupWizard3. The manipulation of the argument host leads to buffer overflow. The attack may be launched remotel…
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High 8.8
Tenda AC1206 openSchedWifi setSchedWifi buffer overflow
A vulnerability was found in Tenda AC1206 up to 15.03.06.23. It has been rated as critical. This issue affects the function setSchedWifi of the file /goform/openSchedWifi. The manipulation leads to buffer overflow. The attack may be initiated remotely. The ex…
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High 8.8
Tenda AC1206 setcfm formSetCfm buffer overflow
A vulnerability was found in Tenda AC1206 up to 15.03.06.23. It has been declared as critical. This vulnerability affects the function formSetCfm of the file /goform/setcfm. The manipulation leads to buffer overflow. The attack can be initiated remotely. The …