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
Belkin F9K1015 formPPPoESetup buffer overflow
A flaw has been found in Belkin F9K1015 1.00.10. This affects an unknown part of the file /goform/formPPPoESetup. This manipulation of the argument pppUserName causes buffer overflow. Remote exploitation of the attack is possible. The exploit has been publish…
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High 8.8
Belkin F9K1015 formL2TPSetup buffer overflow
A vulnerability was detected in Belkin F9K1015 1.00.10. Affected by this issue is some unknown functionality of the file /goform/formL2TPSetup. The manipulation of the argument L2TPUserName results in buffer overflow. The attack may be launched remotely. The …
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High 8.8
Belkin F9K1015 formConnectionSetting buffer overflow
A security vulnerability has been detected in Belkin F9K1015 1.00.10. Affected by this vulnerability is an unknown functionality of the file /goform/formConnectionSetting. The manipulation of the argument max_Conn leads to buffer overflow. The attack may be i…
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Medium 5.3
Open Asset Import Library Assimp Q3DLoader.cpp InternReadFile heap-based overflow
A weakness has been identified in Open Asset Import Library Assimp 6.0.2. This affects the function Q3DImporter::InternReadFile of the file assimp/code/AssetLib/Q3D/Q3DLoader.cpp. Executing a manipulation can lead to heap-based buffer overflow. The attack nee…
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Medium 5.3
Open Asset Import Library Assimp OpenDDLParserUtils.h getNextSeparator heap-based overflow
A vulnerability was identified in Open Asset Import Library Assimp 6.0.2. Affected by this vulnerability is the function ODDLParser::getNextSeparator in the library assimp/contrib/openddlparser/include/openddlparser/OpenDDLParserUtils.h. Such manipulation lea…
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Low —
wrflib has a soundness issue and is unmaintained
All functions under `wrflib::byte_extract` are simply wrapper of unsafe pointer offset and lacks sufficient checks to it pointer and offset parameter. `wrflib` is unmaintained.
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Medium 5.5
SPDK is vulnerable to buffer overflow in the NVMe-oF target component
Storage Performance Development Kit (SPDK) 25.05 is vulnerable to Buffer Overflow in the NVMe-oF target component in SPDK - lib/nvmf.
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High 8.8
Tenda AC18 saveAutoQos stack-based overflow
A flaw has been found in Tenda AC18 15.03.05.19. This impacts an unknown function of the file /goform/saveAutoQos. This manipulation of the argument enable causes stack-based buffer overflow. The attack may be initiated remotely. The exploit has been publishe…
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High 8.8
Tenda AC18 WizardHandle stack-based overflow
A vulnerability was detected in Tenda AC18 15.03.05.19. This affects an unknown function of the file /goform/WizardHandle. The manipulation of the argument WANT/mtuvalue results in stack-based buffer overflow. The attack can be launched remotely. The exploit …
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High 8.8
Tenda AC8 SetServerConfig formSetServerConfig buffer overflow
A weakness has been identified in Tenda AC8 16.03.34.06. The affected element is the function formSetServerConfig of the file /goform/SetServerConfig. Executing manipulation can lead to buffer overflow. It is possible to launch the attack remotely. The exploi…
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High 8.8
Tenda CH22 GstDhcpSetSer formWrlExtraGet buffer overflow
A vulnerability was determined in Tenda CH22 1.0.0.1. This vulnerability affects the function formWrlExtraGet of the file /goform/GstDhcpSetSer. This manipulation of the argument dips causes buffer overflow. The attack is possible to be carried out remotely. …
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High 8.8
Tenda AC21 SetStaticRouteCfg sscanf buffer overflow
A security flaw has been discovered in Tenda AC21 up to 16.03.08.16. Affected by this vulnerability is the function sscanf of the file /goform/SetStaticRouteCfg. The manipulation of the argument list results in buffer overflow. The attack can be launched remo…
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Medium 5.3
GNU Binutils Linker elfcode.h elf_swap_shdr heap-based overflow
A vulnerability has been found in GNU Binutils 2.45. The affected element is the function elf_swap_shdr in the library bfd/elfcode.h of the component Linker. The manipulation leads to heap-based buffer overflow. The attack must be carried out locally. The exp…
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Medium 5.3
GNU Binutils Linker elf-eh-frame.c _bfd_elf_parse_eh_frame heap-based overflow
A flaw has been found in GNU Binutils 2.45. Impacted is the function _bfd_elf_parse_eh_frame of the file bfd/elf-eh-frame.c of the component Linker. Executing manipulation can lead to heap-based buffer overflow. The attack is restricted to local execution. Th…
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Low 3.3
GNU Binutils objdump.c dump_dwarf_section out-of-bounds
A vulnerability was detected in GNU Binutils 2.45. This issue affects the function dump_dwarf_section of the file binutils/objdump.c. Performing manipulation results in out-of-bounds read. The attack is only possible with local access. The exploit is now publ…
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Medium 5.3
OGRECave Ogre OgreSTBICodec.cpp encode mismatched memory management routines
A weakness has been identified in OGRECave Ogre up to 14.4.1. Impacted is the function STBIImageCodec::encode of the file /ogre/PlugIns/STBICodec/src/OgreSTBICodec.cpp. This manipulation causes mismatched memory management routines. The attack is restricted t…
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Medium 5.3
OGRECave Ogre Image OgreSTBICodec.cpp encode heap-based overflow
A security flaw has been discovered in OGRECave Ogre up to 14.4.1. This issue affects the function STBIImageCodec::encode of the file /ogre/PlugIns/STBICodec/src/OgreSTBICodec.cpp of the component Image Handler. The manipulation results in heap-based buffer o…
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Medium 5.3
BehaviorTree Diagnostic Message script_parser.cpp ParseScript stack-based overflow
A vulnerability was determined in BehaviorTree up to 4.7.0. This affects the function ParseScript of the file /src/script_parser.cpp of the component Diagnostic Message Handler. Executing manipulation of the argument error_msgs_buffer can lead to stack-based …
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Medium 5.3
vstakhov libucl ucl_util.c ucl_include_common heap-based overflow
A vulnerability has been found in vstakhov libucl up to 0.9.2. Affected by this vulnerability is the function ucl_include_common of the file /src/ucl_util.c. Such manipulation leads to heap-based buffer overflow. Local access is required to approach this atta…
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Medium 5.3
Open Babel chemkinformat.cpp CheckSpecies heap-based overflow
A flaw has been found in Open Babel up to 3.1.1. Impacted is the function ChemKinFormat::CheckSpecies of the file /src/formats/chemkinformat.cpp. Executing manipulation can lead to heap-based buffer overflow. The attack can only be executed locally. The explo…
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Medium 5.3
Open Babel smilesformat.cpp ParseSmiles heap-based overflow
A vulnerability was detected in Open Babel up to 3.1.1. This issue affects the function OBSmilesParser::ParseSmiles of the file /src/formats/smilesformat.cpp. Performing manipulation results in heap-based buffer overflow. The attack needs to be approached loc…
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Medium 5.3
Open Babel zipstreamimpl.h underflow memory corruption
A security vulnerability has been detected in Open Babel up to 3.1.1. This vulnerability affects the function zlib_stream::basic_unzip_streambuf::underflow in the library /src/zipstreamimpl.h. Such manipulation leads to memory corruption. Local access is requ…
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Medium 5.3
Open Babel gamessformat.cpp ReadMolecule use after free
A weakness has been identified in Open Babel up to 3.1.1. This affects the function GAMESSOutputFormat::ReadMolecule of the file gamessformat.cpp. This manipulation causes use after free. It is possible to launch the attack on the local host. The exploit has …
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High 8.8
UTT 1200GW/1250GW formApMail buffer overflow
A security vulnerability has been detected in UTT 1200GW and 1250GW up to 3.0.0-170831/3.2.2-200710. This vulnerability affects unknown code of the file /goform/formApMail. The manipulation of the argument senderEmail leads to buffer overflow. The attack may …
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High 8.8
MikroTik RouterOS libjson.so print parse_json_element buffer overflow
A vulnerability has been found in MikroTik RouterOS 7. This affects the function parse_json_element of the file /rest/ip/address/print of the component libjson.so. The manipulation leads to buffer overflow. The attack is possible to be carried out remotely. T…
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High 8.8
H3C Magic B3 aspForm EditMacList buffer overflow
A vulnerability was identified in H3C Magic B3 up to 100R002. This affects the function AddMacList/EditMacList of the file /goform/aspForm. The manipulation of the argument param leads to buffer overflow. The attack can be initiated remotely. The exploit is p…
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Critical 9.8
Improper Restriction of Operations within the Bounds of a Memory Buffer in Data Network Stack & Connectivity
Memory corruption when the UE receives an RTP packet from the network, during the reassembly of NALUs.
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High 8.8
Tenda AC21 WifiExtraSet sub_45BB10 buffer overflow
A vulnerability was identified in Tenda AC21 16.03.08.16. The affected element is the function sub_45BB10 of the file /goform/WifiExtraSet. The manipulation of the argument wpapsk_crypto leads to buffer overflow. It is possible to initiate the attack remotely…
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Medium 5.3
axboe fio init.c __parse_jobs_ini use after free
A vulnerability was determined in axboe fio up to 3.41. This impacts the function __parse_jobs_ini of the file init.c. Executing manipulation can lead to use after free. The attack needs to be launched locally. The exploit has been publicly disclosed and may …
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High 8.8
Tenda AC20 HTTP POST Request SetPptpServerCfg strcpy buffer overflow
A vulnerability was identified in Tenda AC20 up to 16.03.08.12. Affected by this issue is the function strcpy of the file /goform/SetPptpServerCfg of the component HTTP POST Request Handler. Such manipulation of the argument startIp leads to buffer overflow. …
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High 8.8
Tenda AC23 HTTP POST Request SetPptpServerCfg sscanf buffer overflow
A vulnerability has been found in Tenda AC23 up to 16.03.07.52. Affected by this vulnerability is the function sscanf of the file /goform/SetPptpServerCfg of the component HTTP POST Request Handler. Such manipulation of the argument startIp leads to buffer ov…
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High 8.8
D-Link DIR-513 formWPS buffer overflow
A security vulnerability has been detected in D-Link DIR-513 A1FW110. Affected is an unknown function of the file /goform/formWPS. Such manipulation of the argument webpage leads to buffer overflow. The attack may be performed from remote. The exploit has bee…
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High 8.8
D-Link DCS-935L HNAP1 sub_402280 stack-based overflow
A vulnerability was found in D-Link DCS-935L up to 1.13.01. The impacted element is the function sub_402280 of the file /HNAP1/. The manipulation of the argument HNAP_AUTH/SOAPAction results in stack-based buffer overflow. The attack may be launched remotely.…
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High 8.8
B-Link BL-AC2100 Web Management set_delshrpath_cfg delshrpath stack-based overflow
A security flaw has been discovered in B-Link BL-AC2100 up to 1.0.3. Affected by this issue is the function delshrpath of the file /goform/set_delshrpath_cfg of the component Web Management Interface. The manipulation of the argument Type results in stack-bas…
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High 8.8
UTT 1200GW formConfigDnsFilterGlobal buffer overflow
A weakness has been identified in UTT 1200GW up to 3.0.0-170831. The affected element is an unknown function of the file /goform/formConfigDnsFilterGlobal. This manipulation of the argument GroupName causes buffer overflow. The attack can be initiated remotel…
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High 8.8
UTT HiPER 840G getOneApConfTempEntry buffer overflow
A security flaw has been discovered in UTT HiPER 840G up to 3.1.1-190328. Impacted is an unknown function of the file /goform/getOneApConfTempEntry. The manipulation of the argument tempName results in buffer overflow. It is possible to launch the attack remo…
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Medium 6.7
Buffer manipulation
A crafted system call argument can cause memory corruption.
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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 7.8
Ashlar-Vellum Cobalt CO File Parsing Memory Corruption Remote Code Execution Vulnerability
Ashlar-Vellum Cobalt CO File Parsing Memory Corruption Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Ashlar-Vellum Cobalt. User interaction is required to exploit this vu…
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High 8.8
Memory safety bugs fixed in Firefox ESR 140.3, Thunderbird ESR 140.3, Firefox 143 and Thunderbird 143
Memory safety bugs present in Firefox ESR 140.2, Thunderbird ESR 140.2, Firefox 142 and Thunderbird 142. 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 co…