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CWE-120

4,476 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 (4,476)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Numpy
1Numpy
Jun 17, 2026
Dec 17, 2021
N/A· v4
5.5 MEDIUM· v3
2.1 LOW· v2
Buffer overflow in the array_from_pyobj function of fortranobject.c in NumPy < 1.19, which allows attackers to conduct a Denial of Service attacks by carefully constructing an array with negative values. NOTE: The vendor...Show more
Buffer overflow in the array_from_pyobj function of fortranobject.c in NumPy < 1.19, which allows attackers to conduct a Denial of Service attacks by carefully constructing an array with negative values. NOTE: The vendor does not agree this is a vulnerability; the negative dimensions can only be created by an already privileged user (or internally)Show less
1Numpy
1Numpy
Jun 17, 2026
Dec 17, 2021
N/A· v4
5.3 MEDIUM· v3
3.5 LOW· v2
A Buffer Overflow vulnerability exists in NumPy 1.9.x in the PyArray_NewFromDescr_int function of ctors.c when specifying arrays of large dimensions (over 32) from Python code, which could let a malicious user cause a De...Show more
A Buffer Overflow vulnerability exists in NumPy 1.9.x in the PyArray_NewFromDescr_int function of ctors.c when specifying arrays of large dimensions (over 32) from Python code, which could let a malicious user cause a Denial of Service. NOTE: The vendor does not agree this is a vulneraility; In (very limited) circumstances a user may be able provoke the buffer overflow, the user is most likely already privileged to at least provoke denial of service by exhausting memory. Triggering this further requires the use of uncommon API (complicated structured dtypes), which is very unlikely to be available to an unprivileged userShow less
1Ftpshell
1Ftpshell Server
Jun 17, 2026
Dec 17, 2021
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
A buffer overflow vulnerability in the Virtual Path Mapping component of FTPShell v6.83 allows attackers to cause a denial of service (DoS).
2Fedoraproject
Teeworlds
2Fedora
Teeworlds
Jun 17, 2026
Dec 15, 2021
N/A· v4
7.8 HIGH· v3
6.8 MEDIUM· v2
Teeworlds up to and including 0.7.5 is vulnerable to Buffer Overflow. A map parser does not validate m_Channels value coming from a map file, leading to a buffer overflow. A malicious server may offer a specially crafted...Show more
Teeworlds up to and including 0.7.5 is vulnerable to Buffer Overflow. A map parser does not validate m_Channels value coming from a map file, leading to a buffer overflow. A malicious server may offer a specially crafted map that will overwrite client's stack causing denial of service or code execution.Show less
1Reprisesoftware
1Reprise License Manager
Jun 17, 2026
Dec 13, 2021
N/A· v4
7.2 HIGH· v3
6.5 MEDIUM· v2
An issue was discovered in Reprise RLM 14.2. By using an admin account, an attacker can write a payload to /goform/edit_opt, which will then be triggered when running the diagnostics (via /goform/diagnostics_doit), resul...Show more
An issue was discovered in Reprise RLM 14.2. By using an admin account, an attacker can write a payload to /goform/edit_opt, which will then be triggered when running the diagnostics (via /goform/diagnostics_doit), resulting in a buffer overflow.Show less
1Fortinet
13Fortiadc
FortianalyzerFortimail+10 more
Jun 17, 2026
Dec 8, 2021
N/A· v4
6.7 MEDIUM· v3
4.6 MEDIUM· v2
A buffer overflow [CWE-121] in the TFTP client library of FortiOS before 6.4.7 and FortiOS 7.0.0 through 7.0.2, may allow an authenticated local attacker to achieve arbitrary code execution via specially crafted command...Show more
A buffer overflow [CWE-121] in the TFTP client library of FortiOS before 6.4.7 and FortiOS 7.0.0 through 7.0.2, may allow an authenticated local attacker to achieve arbitrary code execution via specially crafted command line arguments.Show less
1Sonicwall
5Sma 200 Firmware
Sma 210 FirmwareSma 400 Firmware+2 more
Jun 17, 2026
Dec 8, 2021
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
A buffer overflow vulnerability in SMA100 sonicfiles RAC_COPY_TO (RacNumber 36) method allows a remote unauthenticated attacker to potentially execute code as the 'nobody' user in the appliance. This vulnerability affect...Show more
A buffer overflow vulnerability in SMA100 sonicfiles RAC_COPY_TO (RacNumber 36) method allows a remote unauthenticated attacker to potentially execute code as the 'nobody' user in the appliance. This vulnerability affected SMA 200, 210, 400, 410 and 500v appliances.Show less
2Linux
Netapp
10Cloud Backup
H300e FirmwareH300s Firmware+7 more
Nov 21, 2024
Dec 8, 2021
N/A· v4
7.8 HIGH· v3
4.6 MEDIUM· v2
The BPF subsystem in the Linux kernel before 4.17 mishandles situations with a long jump over an instruction sequence where inner instructions require substantial expansions into multiple BPF instructions, leading to an...Show more
The BPF subsystem in the Linux kernel before 4.17 mishandles situations with a long jump over an instruction sequence where inner instructions require substantial expansions into multiple BPF instructions, leading to an overflow. This affects kernel/bpf/core.c and net/core/filter.c.Show less
1Accops
1Hyworks Windows Client
Jun 17, 2026
Dec 7, 2021
N/A· v4
8.8 HIGH· v3
7.2 HIGH· v2
A Buffer Overflow vulnerability exists in Accops HyWorks Windows Client prior to v 3.2.8.200. The IOCTL Handler 0x22005B allows local attackers to execute arbitrary code in kernel mode or cause a denial of service (memor...Show more
A Buffer Overflow vulnerability exists in Accops HyWorks Windows Client prior to v 3.2.8.200. The IOCTL Handler 0x22005B allows local attackers to execute arbitrary code in kernel mode or cause a denial of service (memory corruption and OS crash) via specially crafted I/O Request Packet.Show less
1Accops
1Hyworks Windows Client
Jun 17, 2026
Dec 7, 2021
N/A· v4
8.8 HIGH· v3
7.2 HIGH· v2
A Buffer Overflow vulnerability exists in Accops HyWorks Windows Client prior to v 3.2.8.200. The IOCTL Handler 0x22001B allows local attackers to execute arbitrary code in kernel mode or cause a denial of service (memor...Show more
A Buffer Overflow vulnerability exists in Accops HyWorks Windows Client prior to v 3.2.8.200. The IOCTL Handler 0x22001B allows local attackers to execute arbitrary code in kernel mode or cause a denial of service (memory corruption and OS crash) via specially crafted I/O Request Packet.Show less
1Accops
1Hyworks Dvm Tools
Jun 17, 2026
Dec 7, 2021
N/A· v4
8.8 HIGH· v3
7.2 HIGH· v2
A Buffer Overflow vulnerability exists in Accops HyWorks DVM Tools prior to v3.3.1.105. The IOCTL Handler 0x22001B allows local attackers to execute arbitrary code in kernel mode or cause a denial of service (memory corr...Show more
A Buffer Overflow vulnerability exists in Accops HyWorks DVM Tools prior to v3.3.1.105. The IOCTL Handler 0x22001B allows local attackers to execute arbitrary code in kernel mode or cause a denial of service (memory corruption and OS crash) via specially crafted I/O Request Packet.Show less
1Amazon
1Workspaces
Jun 17, 2026
Dec 7, 2021
N/A· v4
8.8 HIGH· v3
7.2 HIGH· v2
Amazon WorkSpaces agent is affected by Buffer Overflow. IOCTL Handler 0x22001B in the Amazon WorkSpaces agent below v1.0.1.1537 allow local attackers to execute arbitrary code in kernel mode or cause a denial of service...Show more
Amazon WorkSpaces agent is affected by Buffer Overflow. IOCTL Handler 0x22001B in the Amazon WorkSpaces agent below v1.0.1.1537 allow local attackers to execute arbitrary code in kernel mode or cause a denial of service (memory corruption and OS crash) via specially crafted I/O Request Packet.Show less
1Amzetta
1Zportal Dvm Tools
Jun 17, 2026
Dec 7, 2021
N/A· v4
8.8 HIGH· v3
7.2 HIGH· v2
Amzetta zPortal DVM Tools is affected by Buffer Overflow. IOCTL Handler 0x22001B in the Amzetta zPortal DVM Tools <= v3.3.148.148 allow local attackers to execute arbitrary code in kernel mode or cause a denial of servic...Show more
Amzetta zPortal DVM Tools is affected by Buffer Overflow. IOCTL Handler 0x22001B in the Amzetta zPortal DVM Tools <= v3.3.148.148 allow local attackers to execute arbitrary code in kernel mode or cause a denial of service (memory corruption and OS crash) via specially crafted I/O Request Packet.Show less
1Amzetta
1Zportal Windows Zclient
Jun 17, 2026
Dec 7, 2021
N/A· v4
8.8 HIGH· v3
7.2 HIGH· v2
Amzetta zPortal Windows zClient is affected by Buffer Overflow. IOCTL Handler 0x22001B in the Amzetta zPortal Windows zClient <= v3.2.8180.148 allow local attackers to execute arbitrary code in kernel mode or cause a den...Show more
Amzetta zPortal Windows zClient is affected by Buffer Overflow. IOCTL Handler 0x22001B in the Amzetta zPortal Windows zClient <= v3.2.8180.148 allow local attackers to execute arbitrary code in kernel mode or cause a denial of service (memory corruption and OS crash) via specially crafted I/O Request Packet.Show less
1Donglify
1Donglify
Jun 17, 2026
Dec 7, 2021
N/A· v4
8.8 HIGH· v3
7.2 HIGH· v2
Donglify is affected by Buffer Overflow. IOCTL Handler 0x22001B in the Donglify above 1.0.12309 below 1.7.14110 allow local attackers to execute arbitrary code in kernel mode or cause a denial of service (memory corrupti...Show more
Donglify is affected by Buffer Overflow. IOCTL Handler 0x22001B in the Donglify above 1.0.12309 below 1.7.14110 allow local attackers to execute arbitrary code in kernel mode or cause a denial of service (memory corruption and OS crash) via specially crafted I/O Request Packet.Show less
1Flexihub
1Flexihub
Jun 17, 2026
Dec 7, 2021
N/A· v4
8.8 HIGH· v3
7.2 HIGH· v2
FlexiHub For Windows is affected by Buffer Overflow. IOCTL Handler 0x22001B in the FlexiHub For Windows above 2.0.4340 below 5.3.14268 allows local attackers to execute arbitrary code in kernel mode or cause a denial of...Show more
FlexiHub For Windows is affected by Buffer Overflow. IOCTL Handler 0x22001B in the FlexiHub For Windows above 2.0.4340 below 5.3.14268 allows local attackers to execute arbitrary code in kernel mode or cause a denial of service (memory corruption and OS crash) via specially crafted I/O Request Packet.Show less
1Eltima
1Usb Network Gate
Jun 17, 2026
Dec 7, 2021
N/A· v4
8.8 HIGH· v3
7.2 HIGH· v2
Eltima USB Network Gate is affected by Buffer Overflow. IOCTL Handler 0x22001B in the USB Network Gate above 7.0.1370 below 9.2.2420 allow local attackers to execute arbitrary code in kernel mode or cause a denial of ser...Show more
Eltima USB Network Gate is affected by Buffer Overflow. IOCTL Handler 0x22001B in the USB Network Gate above 7.0.1370 below 9.2.2420 allow local attackers to execute arbitrary code in kernel mode or cause a denial of service (memory corruption and OS crash) via specially crafted I/O Request Packet.Show less
1Nomachine
1Enterprise Client
Jun 17, 2026
Dec 7, 2021
N/A· v4
8.8 HIGH· v3
7.2 HIGH· v2
NoMachine Enterprise Client is affected by Buffer Overflow. IOCTL Handler 0x22001B in the NoMachine Enterprise Client above 4.0.346 and below 7.7.4 allow local attackers to execute arbitrary code in kernel mode or cause...Show more
NoMachine Enterprise Client is affected by Buffer Overflow. IOCTL Handler 0x22001B in the NoMachine Enterprise Client above 4.0.346 and below 7.7.4 allow local attackers to execute arbitrary code in kernel mode or cause a denial of service (memory corruption and OS crash) via specially crafted I/O Request Packet.Show less
1Nomachine
1Cloud Server
Jun 17, 2026
Dec 7, 2021
N/A· v4
8.8 HIGH· v3
7.2 HIGH· v2
NoMachine Cloud Server is affected by Buffer Overflow. IOCTL Handler 0x22001B in the NoMachine Cloud Server above 4.0.346 and below 7.7.4 allow local attackers to execute arbitrary code in kernel mode or cause a denial o...Show more
NoMachine Cloud Server is affected by Buffer Overflow. IOCTL Handler 0x22001B in the NoMachine Cloud Server above 4.0.346 and below 7.7.4 allow local attackers to execute arbitrary code in kernel mode or cause a denial of service (memory corruption and OS crash) via specially crafted I/O Request Packet.Show less
1Nomachine
1Enterprise Desktop
Jun 17, 2026
Dec 7, 2021
N/A· v4
8.8 HIGH· v3
7.2 HIGH· v2
NoMachine Enterprise Desktop is affected by Buffer Overflow. IOCTL Handler 0x22001B in the NoMachine Enterprise Desktop above 4.0.346 and below 7.7.4 allow local attackers to execute arbitrary code in kernel mode or caus...Show more
NoMachine Enterprise Desktop is affected by Buffer Overflow. IOCTL Handler 0x22001B in the NoMachine Enterprise Desktop above 4.0.346 and below 7.7.4 allow local attackers to execute arbitrary code in kernel mode or cause a denial of service (memory corruption and OS crash) via specially crafted I/O Request Packet.Show less