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CWE-120

4,436 CVEs • Abstraction: Base • Likelihood of Exploit: High

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.

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CVEs (4,436)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Deltaww
1Dopsoft
Jun 17, 2026
Jan 18, 2024
N/A· v4
7.8 HIGH· v3
6.8 MEDIUM· v2
A stack based buffer overflow exists in Delta Electronics Delta Industrial Automation DOPSoft when parsing the InitialMacroLen field of a DPS file. A remote, unauthenticated attacker can exploit this vulnerability by ent...Show more
A stack based buffer overflow exists in Delta Electronics Delta Industrial Automation DOPSoft when parsing the InitialMacroLen field of a DPS file. A remote, unauthenticated attacker can exploit this vulnerability by enticing a user to open a specially crafted DPS file to achieve remote code execution. Show less
1Deltaww
1Dopsoft
Jun 17, 2026
Jan 18, 2024
N/A· v4
7.8 HIGH· v3
6.8 MEDIUM· v2
A buffer overflow exists in Delta Electronics Delta Industrial Automation DOPSoft. A remote, unauthenticated attacker can exploit this vulnerability by enticing a user to open a specially crafted DPS file to achieve remo...Show more
A buffer overflow exists in Delta Electronics Delta Industrial Automation DOPSoft. A remote, unauthenticated attacker can exploit this vulnerability by enticing a user to open a specially crafted DPS file to achieve remote code execution. Show less
1Deltaww
1Dopsoft
Jun 17, 2026
Jan 18, 2024
N/A· v4
7.8 HIGH· v3
6.8 MEDIUM· v2
A buffer overflow exists in Delta Electronics Delta Industrial Automation DOPSoft version 2 when parsing the wMailContentLen field of a DPS file. An anonymous attacker can exploit this vulnerability by enticing a user to...Show more
A buffer overflow exists in Delta Electronics Delta Industrial Automation DOPSoft version 2 when parsing the wMailContentLen field of a DPS file. An anonymous attacker can exploit this vulnerability by enticing a user to open a specially crafted DPS file to achieve code execution. Show less
1Deltaww
1Dopsoft
Jun 17, 2026
Jan 18, 2024
N/A· v4
7.8 HIGH· v3
6.8 MEDIUM· v2
A buffer overflow vulnerability exists in Delta Electronics Delta Industrial Automation DOPSoft version 2 when parsing the wKPFStringLen field of a DPS file. An anonymous attacker can exploit this vulnerability by entici...Show more
A buffer overflow vulnerability exists in Delta Electronics Delta Industrial Automation DOPSoft version 2 when parsing the wKPFStringLen field of a DPS file. An anonymous attacker can exploit this vulnerability by enticing a user to open a specially crafted DPS file to achieve code execution. Show less
1Deltaww
1Dopsoft
Jun 17, 2026
Jan 18, 2024
N/A· v4
7.8 HIGH· v3
6.8 MEDIUM· v2
A buffer overflow vulnerability exists in Delta Electronics Delta Industrial Automation DOPSoft version 2 when parsing the wScreenDESCTextLen field of a DPS file. An anonymous attacker can exploit this vulnerability by e...Show more
A buffer overflow vulnerability exists in Delta Electronics Delta Industrial Automation DOPSoft version 2 when parsing the wScreenDESCTextLen field of a DPS file. An anonymous attacker can exploit this vulnerability by enticing a user to open a specially crafted DPS file to achieve code execution. Show less
1Vyperlang
1Vyper
Jun 17, 2026
Jan 18, 2024
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Vyper is a Pythonic Smart Contract Language for the Ethereum Virtual Machine. The `concat` built-in can write over the bounds of the memory buffer that was allocated for it and thus overwrite existing valid data. The roo...Show more
Vyper is a Pythonic Smart Contract Language for the Ethereum Virtual Machine. The `concat` built-in can write over the bounds of the memory buffer that was allocated for it and thus overwrite existing valid data. The root cause is that the `build_IR` for `concat` doesn't properly adhere to the API of copy functions (for `>=0.3.2` the `copy_bytes` function). A contract search was performed and no vulnerable contracts were found in production. The buffer overflow can result in the change of semantics of the contract. The overflow is length-dependent and thus it might go unnoticed during contract testing. However, certainly not all usages of concat will result in overwritten valid data as we require it to be in an internal function and close to the return statement where other memory allocations don't occur. This issue has been addressed in 0.4.0.Show less
1Explorerplusplus
1Explorer++
Jun 17, 2026
Jan 17, 2024
N/A· v4
7.8 HIGH· v3
N/A· v2
Buffer overflow vulnerability in Explorer++ affecting version 1.3.5.531. A local attacker could execute arbitrary code via a long filename argument by monitoring Structured Exception Handler (SEH) records.
1Hypr
1Workforce Access
Jun 17, 2026
Jan 16, 2024
N/A· v4
7.8 HIGH· v3
N/A· v2
Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in HYPR Workforce Access on Windows allows Overflow Buffers.This issue affects Workforce Access: before 8.7.
1Huawei
2Emui
Harmonyos
Jun 17, 2026
Jan 16, 2024
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Buffer overflow vulnerability in the FLP module. Successful exploitation of this vulnerability may cause out-of-bounds read.
1Easyftp Server Project
1Easyftp Server
Nov 21, 2024
Jan 16, 2024
N/A· v4
8.8 HIGH· v3
6.5 MEDIUM· v2
A vulnerability, which was classified as critical, was found in EasyFTP 1.7.0.2. Affected is an unknown function of the component MKD Command Handler. The manipulation leads to buffer overflow. It is possible to launch t...Show more
A vulnerability, which was classified as critical, was found in EasyFTP 1.7.0.2. Affected is an unknown function of the component MKD Command Handler. The manipulation leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-250716.Show less
1Troglobit
1Libeuv
Jun 17, 2026
Jan 12, 2024
N/A· v4
9.8 CRITICAL· v3
N/A· v2
uev (aka libuev) before 2.4.1 has a buffer overflow in epoll_wait if maxevents is a large number.
1Hancom
1Hcell
Jun 17, 2026
Jan 12, 2024
N/A· v4
8.8 HIGH· v3
N/A· v2
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in Hancom HCell on Windows allows Overflow Buffers.This issue affects HCell: 12.0.0.893.
1Apple
1Macos
Jun 17, 2026
Jan 10, 2024
N/A· v4
7.8 HIGH· v3
N/A· v2
A buffer overflow was addressed with improved bounds checking. This issue is fixed in macOS Monterey 12.6.6, macOS Big Sur 11.7.7, macOS Ventura 13.4. Parsing an office document may lead to an unexpected app termination...Show more
A buffer overflow was addressed with improved bounds checking. This issue is fixed in macOS Monterey 12.6.6, macOS Big Sur 11.7.7, macOS Ventura 13.4. Parsing an office document may lead to an unexpected app termination or arbitrary code execution.Show less
1Freeimage Project
1Freeimage
Jun 17, 2026
Jan 9, 2024
N/A· v4
6.5 MEDIUM· v3
N/A· v2
Memory Allocation with Excessive Size Value discovered in BitmapAccess.cpp::FreeImage_AllocateBitmap in FreeImage 3.18.0 allows attackers to cause a denial of service.
1Totolink
1X2000r Firmware
Jun 17, 2026
Jan 9, 2024
N/A· v4
9.8 CRITICAL· v3
8.3 HIGH· v2
A vulnerability was found in Totolink X2000R 1.0.0-B20221212.1452. It has been declared as critical. This vulnerability affects the function formTmultiAP of the file /bin/boa of the component HTTP POST Request Handler. T...Show more
A vulnerability was found in Totolink X2000R 1.0.0-B20221212.1452. It has been declared as critical. This vulnerability affects the function formTmultiAP of the file /bin/boa of the component HTTP POST Request Handler. The manipulation of the argument submit-url leads to buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-249856. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.Show less
1Trellix
1Agent
Jun 17, 2026
Jan 9, 2024
N/A· v4
7.8 HIGH· v3
N/A· v2
A buffer overflow vulnerability in TA for Linux and TA for MacOS prior to 5.8.1 allows a local user to gain elevated permissions, or cause a Denial of Service (DoS), through exploiting a memory corruption issue in the T...Show more
A buffer overflow vulnerability in TA for Linux and TA for MacOS prior to 5.8.1 allows a local user to gain elevated permissions, or cause a Denial of Service (DoS), through exploiting a memory corruption issue in the TA service, which runs as root. This may also result in the disabling of event reporting to ePO, caused by failure to validate input from the file correctly. Show less
1Totolink
1T6 Firmware
Jun 17, 2026
Jan 9, 2024
N/A· v4
9.8 CRITICAL· v3
10.0 HIGH· v2
A vulnerability was found in Totolink T6 4.1.9cu.5241_B20210923. It has been classified as critical. This affects the function main of the file /cgi-bin/cstecgi.cgi?action=login of the component HTTP POST Request Handler...Show more
A vulnerability was found in Totolink T6 4.1.9cu.5241_B20210923. It has been classified as critical. This affects the function main of the file /cgi-bin/cstecgi.cgi?action=login of the component HTTP POST Request Handler. The manipulation of the argument v41 leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-249855. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.Show less
1Tonybybell
1Gtkwave
Jun 17, 2026
Jan 8, 2024
N/A· v4
7.8 HIGH· v3
N/A· v2
A stack-based buffer overflow vulnerability exists in the LXT2 lxt2_rd_expand_integer_to_bits function of GTKWave 3.3.115. A specially crafted .lxt2 file can lead to arbitrary code execution. A victim would need to open...Show more
A stack-based buffer overflow vulnerability exists in the LXT2 lxt2_rd_expand_integer_to_bits function of GTKWave 3.3.115. A specially crafted .lxt2 file can lead to arbitrary code execution. A victim would need to open a malicious file to trigger this vulnerability.Show less
1Totolink
1X2000r Firmware
Jun 17, 2026
Jan 7, 2024
N/A· v4
9.8 CRITICAL· v3
7.7 HIGH· v2
A vulnerability classified as critical was found in Totolink X2000R_V2 2.0.0-B20230727.10434. This vulnerability affects the function formTmultiAP of the file /bin/boa. The manipulation leads to buffer overflow. VDB-2497...Show more
A vulnerability classified as critical was found in Totolink X2000R_V2 2.0.0-B20230727.10434. This vulnerability affects the function formTmultiAP of the file /bin/boa. The manipulation leads to buffer overflow. VDB-249742 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.Show less
1Qnap
2Qts
Quts Hero
Jun 17, 2026
Jan 5, 2024
N/A· v4
7.2 HIGH· v3
N/A· v2
A buffer copy without checking size of input vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow authenticated administrators to execute code via...Show more
A buffer copy without checking size of input vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow authenticated administrators to execute code via a network. We have already fixed the vulnerability in the following versions: QTS 5.1.4.2596 build 20231128 and later QuTS hero h5.1.4.2596 build 20231128 and later Show less