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
2,176 results · Clear filters · Feed
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High 8.8
Tenda AC23 HTTP POST Request formSetPPTPUserList buffer overflow
A security flaw has been discovered in Tenda AC23 16.03.07.52. Affected is the function formSetPPTPUserList of the component HTTP POST Request Handler. Performing a manipulation of the argument list results in buffer overflow. The attack can be initiated remo…
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High 8.8
Tenda AC23 SetIpMacBind fromSetIpMacBind stack-based overflow
A vulnerability was identified in Tenda AC23 16.03.07.52. This impacts the function fromSetIpMacBind of the file /goform/SetIpMacBind. Such manipulation of the argument bindnum leads to stack-based buffer overflow. It is possible to launch the attack remotely…
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High 8.8
Tenda AC10U HTTP POST Request setPptpUserList formSetPPTPUserList buffer overflow
A vulnerability was determined in Tenda AC10U 15.03.06.48/15.03.06.49. This affects the function formSetPPTPUserList of the file /goform/setPptpUserList of the component HTTP POST Request Handler. This manipulation of the argument list causes buffer overflow.…
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High 8.8
D-Link DWR-M920 formParentControl sub_423848 buffer overflow
A vulnerability was detected in D-Link DWR-M920 up to 1.1.50. This affects the function sub_423848 of the file /boafrm/formParentControl. Performing manipulation of the argument submit-url results in buffer overflow. The attack is possible to be carried out r…
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High 8.8
D-Link DWR-M920 formFilter sub_42261C stack-based overflow
A security flaw has been discovered in D-Link DWR-M920 up to 1.1.50. Impacted is the function sub_42261C of the file /boafrm/formFilter. The manipulation of the argument ip6addr results in stack-based buffer overflow. The attack may be launched remotely. The …
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High 8.8
D-Link DWR-M920 formDefRoute sub_464794 buffer overflow
A vulnerability was identified in D-Link DWR-M920 up to 1.1.50. This issue affects the function sub_464794 of the file /boafrm/formDefRoute. The manipulation of the argument submit-url leads to buffer overflow. The attack may be initiated remotely. The exploi…
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High 7.2
Tenda WH450 HTTP Request webExcptypemanFilte stack-based overflow
A vulnerability was identified in Tenda WH450 1.0.0.18. The affected element is an unknown function of the file /goform/webExcptypemanFilte of the component HTTP Request Handler. Such manipulation of the argument page leads to stack-based buffer overflow. The…
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High 7.2
Tenda WH450 qossetting stack-based overflow
A vulnerability was determined in Tenda WH450 1.0.0.18. Impacted is an unknown function of the file /goform/qossetting. This manipulation of the argument page causes stack-based buffer overflow. The attack may be initiated remotely. The exploit has been publi…
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High 7.2
Tenda WH450 HTTP Request VirtualSer stack-based overflow
A vulnerability was found in Tenda WH450 1.0.0.18. This issue affects some unknown processing of the file /goform/VirtualSer of the component HTTP Request Handler. The manipulation of the argument page results in stack-based buffer overflow. The attack can be…
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High 7.2
Tenda WH450 HTTP Request SetIpBind stack-based overflow
A vulnerability has been found in Tenda WH450 1.0.0.18. This vulnerability affects unknown code of the file /goform/SetIpBind of the component HTTP Request Handler. The manipulation of the argument page leads to stack-based buffer overflow. The attack can be …
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High 7.2
Tenda WH450 SafeMacFilter stack-based overflow
A security flaw has been discovered in Tenda WH450 1.0.0.18. This affects an unknown part of the file /goform/SafeMacFilter. The manipulation of the argument page results in stack-based buffer overflow. The attack may be performed from remote. The exploit has…
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High 7.2
Tenda WH450 SafeEmailFilter stack-based overflow
A vulnerability was identified in Tenda WH450 1.0.0.18. Affected by this issue is some unknown functionality of the file /goform/SafeEmailFilter. The manipulation of the argument page leads to stack-based buffer overflow. The attack is possible to be carried …
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High 7.2
Tenda WH450 RouteStatic stack-based overflow
A vulnerability was determined in Tenda WH450 1.0.0.18. Affected by this vulnerability is an unknown functionality of the file /goform/RouteStatic. Executing a manipulation of the argument page can lead to stack-based buffer overflow. The attack can be execut…
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High 7.2
Tenda WH450 PPTPUserSetting stack-based overflow
A vulnerability was found in Tenda WH450 1.0.0.18. Affected is an unknown function of the file /goform/PPTPUserSetting. Performing a manipulation of the argument delno results in stack-based buffer overflow. Remote exploitation of the attack is possible. The …
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High 7.2
Tenda WH450 PPTPServer stack-based overflow
A vulnerability has been found in Tenda WH450 1.0.0.18. This impacts an unknown function of the file /goform/PPTPServer. Such manipulation of the argument ip1 leads to stack-based buffer overflow. The attack may be launched remotely. The exploit has been disc…
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High 7.8
IBM Concert Software Improper Restriction of Operations within the Bounds of a Memory Buffer.
IBM Concert 1.0.0 through 2.1.0 is vulnerable to a stack-based buffer overflow, caused by improper bounds checking. A local user could overflow the buffer and execute arbitrary code on the system.
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High 8.8
UTT 进取 512W ConfigExceptMSN strcpy buffer overflow
A vulnerability was identified in UTT 进取 512W up to 1.7.7-171114. Impacted is the function strcpy of the file /goform/ConfigExceptMSN. Such manipulation of the argument remark leads to buffer overflow. It is possible to launch the attack remotely. The exploit…
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High 8.8
UTT 进取 512W formPictureUrl strcpy buffer overflow
A vulnerability was determined in UTT 进取 512W up to 1.7.7-171114. This issue affects the function strcpy of the file /goform/formPictureUrl. This manipulation of the argument importpictureurl causes buffer overflow. It is possible to initiate the attack remot…
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High 8.8
UTT 进取 512W formConfigNoticeConfig strcpy buffer overflow
A vulnerability was found in UTT 进取 512W up to 1.7.7-171114. This vulnerability affects the function strcpy of the file /goform/formConfigNoticeConfig. The manipulation of the argument timestart results in buffer overflow. The attack may be performed from rem…
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High 8.8
UTT 进取 512W APSecurity strcpy buffer overflow
A vulnerability has been found in UTT 进取 512W up to 1.7.7-171114. This affects the function strcpy of the file /goform/APSecurity. The manipulation of the argument wepkey1 leads to buffer overflow. The attack is possible to be carried out remotely. The exploi…
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High 7.8
pdfforge PDF Architect PDF File Parsing Memory Corruption Remote Code Execution Vulnerability
pdfforge PDF Architect PDF File Parsing Memory Corruption Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of pdfforge PDF Architect. User interaction is required to exploit th…
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High 7.5
FreyrSCADA/IEC-60870-5-104 server v21.06.008 allows remote attackers to cause a denial of service by sending specific m…
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High 7.3
Tenda WH450 HTTP Request L7Port stack-based overflow
A vulnerability was detected in Tenda WH450 1.0.0.18. This affects an unknown part of the file /goform/L7Port of the component HTTP Request Handler. Performing a manipulation of the argument page results in stack-based buffer overflow. The attack may be initi…
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High 8.8
Tenda FH1201 SetIpBind sprintf stack-based overflow
A vulnerability has been found in Tenda FH1201 1.2.0.14(408). Affected is the function sprintf of the file /goform/SetIpBind. Such manipulation of the argument page leads to stack-based buffer overflow. The attack may be performed from remote. The exploit has…
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High 8.8
Tenda FH1201/FH1206 HTTP Request webtypelibrary strcat stack-based overflow
A flaw has been found in Tenda FH1201 and FH1206 1.2.0.14(408)/1.2.0.8(8155). This impacts the function strcat of the file /goform/webtypelibrary of the component HTTP Request Handler. This manipulation of the argument webSiteId causes stack-based buffer over…
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High 8.8
Tenda AC18 HTTP Request SetDlnaCfg sprintf stack-based overflow
A vulnerability was detected in Tenda AC18 15.03.05.05. This affects the function sprintf of the file /goform/SetDlnaCfg of the component HTTP Request Handler. The manipulation of the argument scanList results in stack-based buffer overflow. The attack can be…
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High 8.8
Tenda AC18 HTTP Request GetParentControlInfo strcpy stack-based overflow
A security vulnerability has been detected in Tenda AC18 15.03.05.05. The impacted element is the function strcpy of the file /goform/GetParentControlInfo of the component HTTP Request Handler. The manipulation of the argument mac leads to stack-based buffer …
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High 8.8
Memory safety bugs fixed in Firefox 146.0.1
Memory safety bugs present in Firefox 146. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 146.0.1.
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High 7.4
An out-of-bounds read vulnerability exists in the JPEGBITSCodec::InternalCode functionality of Grassroot DICOM 3.024. A…
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High 7.4
An out-of-bounds read vulnerability exists in the JPEGBITSCodec::InternalCode functionality of Grassroot DICOM 3.024. A…
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High 7.4
An out-of-bounds read vulnerability exists in the Overlay::GrabOverlayFromPixelData functionality of Grassroot DICOM 3.…
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High 7.4
An out-of-bounds read vulnerability exists in the RLECodec::DecodeByStreams functionality of Grassroot DICOM 3.024. A s…
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High 7.3
gmg137 snap7-rs client.rs as_ct_write heap-based overflow
A vulnerability has been found in gmg137 snap7-rs up to 1.142.1. Affected is the function snap7_rs::client::S7Client::as_ct_write of the file /tests/snap7-rs/src/client.rs. The manipulation leads to heap-based buffer overflow. The attack can be initiated remo…
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High 7.3
gmg137 snap7-rs s7_micro_client.cpp opWriteArea heap-based overflow
A flaw has been found in gmg137 snap7-rs up to 1.142.1. This impacts the function TSnap7MicroClient::opWriteArea of the file s7_micro_client.cpp. Executing a manipulation can lead to heap-based buffer overflow. It is possible to launch the attack remotely. Th…
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High 8.8
Tenda AC20 openSchedWifi httpd buffer overflow
A weakness has been identified in Tenda AC20 16.03.08.12. This affects the function httpd of the file /goform/openSchedWifi. Executing a manipulation of the argument schedStartTime/schedEndTime can lead to buffer overflow. The attack may be performed from rem…
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High 8.8
Tenda AC20 httpd SetSysAutoRebbotCfg formSetRebootTimer stack-based overflow
A security flaw has been discovered in Tenda AC20 16.03.08.12. The impacted element is the function formSetRebootTimer of the file /goform/SetSysAutoRebbotCfg of the component httpd. Performing a manipulation of the argument rebootTime results in stack-based …
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High 8.8
Tenda AC20 httpd setPptpUserList formSetPPTPUserList stack-based overflow
A vulnerability was identified in Tenda AC20 16.03.08.12. The affected element is the function formSetPPTPUserList of the file /goform/setPptpUserList of the component httpd. Such manipulation of the argument list leads to stack-based buffer overflow. The att…
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High 8.8
The issue was addressed with improved bounds checks. This issue is fixed in iOS 18.7.3 and iPadOS 18.7.3, iOS 26.2 and …
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High 8.8
UTT 进取 512W formWebAuthGlobalConfig memory corruption
A vulnerability was found in UTT 进取 512W up to 1.7.7-171114. This affects an unknown part of the file /goform/formWebAuthGlobalConfig. Performing manipulation of the argument hidcontact results in memory corruption. Remote exploitation of the attack is possib…
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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